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Vulnerability details: VCID-8tjs-63bt-hkga
Vulnerability ID VCID-8tjs-63bt-hkga
Aliases CVE-2019-14853
GHSA-2mrj-435v-c2cr
GHSA-pwfw-mgfj-7g3g
PYSEC-2019-177
Summary An error-handling flaw was found in python-ecdsa before version 0.13.3. During signature decoding, malformed DER signatures could raise unexpected exceptions (or no exceptions at all), which could lead to a denial of service.
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-391 Unchecked Error Condition
CWE-755 Improper Handling of Exceptional Conditions
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3 3.7 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-14853.json
epss 0.00076 https://api.first.org/data/v1/epss?cve=CVE-2019-14853
cvssv3.1 7.5 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14853
cvssv4 8.7 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14853
generic_textual HIGH https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14853
generic_textual MODERATE https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14853
cvssv3 5.3 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-2mrj-435v-c2cr
generic_textual MODERATE https://github.com/advisories/GHSA-2mrj-435v-c2cr
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-pwfw-mgfj-7g3g
generic_textual MODERATE https://github.com/advisories/GHSA-pwfw-mgfj-7g3g
cvssv3.1 7.5 https://github.com/pypa/advisory-database/tree/main/vulns/ecdsa/PYSEC-2019-177.yaml
cvssv4 8.7 https://github.com/pypa/advisory-database/tree/main/vulns/ecdsa/PYSEC-2019-177.yaml
generic_textual HIGH https://github.com/pypa/advisory-database/tree/main/vulns/ecdsa/PYSEC-2019-177.yaml
generic_textual MODERATE https://github.com/pypa/advisory-database/tree/main/vulns/ecdsa/PYSEC-2019-177.yaml
cvssv3.1 7.5 https://github.com/warner/python-ecdsa
cvssv4 8.7 https://github.com/warner/python-ecdsa
generic_textual HIGH https://github.com/warner/python-ecdsa
cvssv3.1 7.5 https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3
cvssv4 8.7 https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3
generic_textual HIGH https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3
generic_textual MODERATE https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3
cvssv3.1 7.5 https://github.com/warner/python-ecdsa/security/advisories/GHSA-pwfw-mgfj-7g3g
cvssv3.1_qr HIGH https://github.com/warner/python-ecdsa/security/advisories/GHSA-pwfw-mgfj-7g3g
cvssv4 8.7 https://github.com/warner/python-ecdsa/security/advisories/GHSA-pwfw-mgfj-7g3g
generic_textual HIGH https://github.com/warner/python-ecdsa/security/advisories/GHSA-pwfw-mgfj-7g3g
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2019-14853
cvssv4 8.7 https://nvd.nist.gov/vuln/detail/CVE-2019-14853
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2019-14853
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2019-14853
cvssv3.1 7.5 https://seclists.org/bugtraq/2019/Dec/33
cvssv4 8.7 https://seclists.org/bugtraq/2019/Dec/33
generic_textual HIGH https://seclists.org/bugtraq/2019/Dec/33
generic_textual MODERATE https://seclists.org/bugtraq/2019/Dec/33
cvssv3.1 7.5 https://www.debian.org/security/2019/dsa-4588
cvssv4 8.7 https://www.debian.org/security/2019/dsa-4588
generic_textual HIGH https://www.debian.org/security/2019/dsa-4588
generic_textual MODERATE https://www.debian.org/security/2019/dsa-4588
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-14853.json
https://api.first.org/data/v1/epss?cve=CVE-2019-14853
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14853
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14853
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14859
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/advisories/GHSA-2mrj-435v-c2cr
https://github.com/advisories/GHSA-pwfw-mgfj-7g3g
https://github.com/pypa/advisory-database/tree/main/vulns/ecdsa/PYSEC-2019-177.yaml
https://github.com/warner/python-ecdsa
https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3
https://github.com/warner/python-ecdsa/security/advisories/GHSA-pwfw-mgfj-7g3g
https://nvd.nist.gov/vuln/detail/CVE-2019-14853
https://seclists.org/bugtraq/2019/Dec/33
https://www.debian.org/security/2019/dsa-4588
1758704 https://bugzilla.redhat.com/show_bug.cgi?id=1758704
RHSA-2021:4702 https://access.redhat.com/errata/RHSA-2021:4702
USN-4196-1 https://usn.ubuntu.com/4196-1/
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-14853.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14853
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

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unchanged

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14853
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

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passive

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Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/pypa/advisory-database/tree/main/vulns/ecdsa/PYSEC-2019-177.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

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none

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required

unchanged

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://github.com/pypa/advisory-database/tree/main/vulns/ecdsa/PYSEC-2019-177.yaml
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/warner/python-ecdsa
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

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required

unchanged

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://github.com/warner/python-ecdsa
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

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passive

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/warner/python-ecdsa/security/advisories/GHSA-pwfw-mgfj-7g3g
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

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required

unchanged

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://github.com/warner/python-ecdsa/security/advisories/GHSA-pwfw-mgfj-7g3g
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2019-14853
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

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high

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://nvd.nist.gov/vuln/detail/CVE-2019-14853
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

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none

present

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passive

active

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none

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://seclists.org/bugtraq/2019/Dec/33
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

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none
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://seclists.org/bugtraq/2019/Dec/33
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

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present

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passive

active

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none

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://www.debian.org/security/2019/dsa-4588
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

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none
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://www.debian.org/security/2019/dsa-4588
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

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present

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passive

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Exploit Prediction Scoring System (EPSS)
Percentile 0.22886
EPSS Score 0.00076
Published At May 29, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-05-29T08:33:34.579580+00:00 Pypa Importer Import https://github.com/pypa/advisory-database/blob/main/vulns/ecdsa/PYSEC-2019-177.yaml 38.6.0