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Vulnerability details: VCID-m1b3-yync-t3bx
Vulnerability ID VCID-m1b3-yync-t3bx
Aliases CVE-2023-49316
GHSA-jpr7-q523-hx25
Summary phpseclib vulnerable to denial of service In Math/BinaryField.php in phpseclib 3 before 3.0.34, excessively large degrees in binary fields can lead to a denial of service.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-400 Uncontrolled Resource Consumption
CWE-834 Excessive Iteration
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
epss 0.00114 https://api.first.org/data/v1/epss?cve=CVE-2023-49316
cvssv3.1 7.5 https://github.com/advisories/GHSA-jpr7-q523-hx25
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-jpr7-q523-hx25
generic_textual HIGH https://github.com/advisories/GHSA-jpr7-q523-hx25
cvssv3.1 7.5 https://github.com/FriendsOfPHP/security-advisories/blob/master/phpseclib/phpseclib/CVE-2023-49316.yaml
generic_textual HIGH https://github.com/FriendsOfPHP/security-advisories/blob/master/phpseclib/phpseclib/CVE-2023-49316.yaml
cvssv3.1 7.5 https://github.com/phpseclib/phpseclib
generic_textual HIGH https://github.com/phpseclib/phpseclib
cvssv3.1 7.5 https://github.com/phpseclib/phpseclib/commit/964d78101a70305df33f442f5490f0adb3b7e77f
generic_textual HIGH https://github.com/phpseclib/phpseclib/commit/964d78101a70305df33f442f5490f0adb3b7e77f
cvssv3.1 7.5 https://github.com/phpseclib/phpseclib/releases/tag/3.0.34
generic_textual HIGH https://github.com/phpseclib/phpseclib/releases/tag/3.0.34
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2023-49316
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2023-49316
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2023-49316
https://github.com/advisories/GHSA-jpr7-q523-hx25
https://github.com/FriendsOfPHP/security-advisories/blob/master/phpseclib/phpseclib/CVE-2023-49316.yaml
https://github.com/phpseclib/phpseclib
https://github.com/phpseclib/phpseclib/commit/964d78101a70305df33f442f5490f0adb3b7e77f
https://github.com/phpseclib/phpseclib/releases/tag/3.0.34
https://nvd.nist.gov/vuln/detail/CVE-2023-49316
1057008 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1057008
cpe:2.3:a:phpseclib:phpseclib:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:phpseclib:phpseclib:*:*:*:*:*:*:*:*
No exploits are available.
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/advisories/GHSA-jpr7-q523-hx25
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

low

none
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/FriendsOfPHP/security-advisories/blob/master/phpseclib/phpseclib/CVE-2023-49316.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

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
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/phpseclib/phpseclib
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

low

none
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/phpseclib/phpseclib/commit/964d78101a70305df33f442f5490f0adb3b7e77f
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

low

none
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/phpseclib/phpseclib/releases/tag/3.0.34
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

low

none
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-2023-49316
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

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.30842
EPSS Score 0.00114
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:44:10.994364+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/11/GHSA-jpr7-q523-hx25/GHSA-jpr7-q523-hx25.json 37.0.0