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Vulnerability details: VCID-39wj-ubxt-4ufz
Vulnerability ID VCID-39wj-ubxt-4ufz
Aliases CVE-2016-9969
PYSEC-2019-256
Summary In libwebp 0.5.1, there is a double free bug in libwebpmux.
Status Published
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-415 Double Free
System Score Found at
epss 0.00332 https://api.first.org/data/v1/epss?cve=CVE-2016-9969
epss 0.00332 https://api.first.org/data/v1/epss?cve=CVE-2016-9969
epss 0.00332 https://api.first.org/data/v1/epss?cve=CVE-2016-9969
epss 0.00332 https://api.first.org/data/v1/epss?cve=CVE-2016-9969
epss 0.00332 https://api.first.org/data/v1/epss?cve=CVE-2016-9969
epss 0.00332 https://api.first.org/data/v1/epss?cve=CVE-2016-9969
epss 0.00332 https://api.first.org/data/v1/epss?cve=CVE-2016-9969
epss 0.00332 https://api.first.org/data/v1/epss?cve=CVE-2016-9969
epss 0.00332 https://api.first.org/data/v1/epss?cve=CVE-2016-9969
epss 0.00332 https://api.first.org/data/v1/epss?cve=CVE-2016-9969
epss 0.00332 https://api.first.org/data/v1/epss?cve=CVE-2016-9969
epss 0.00332 https://api.first.org/data/v1/epss?cve=CVE-2016-9969
epss 0.00332 https://api.first.org/data/v1/epss?cve=CVE-2016-9969
epss 0.00332 https://api.first.org/data/v1/epss?cve=CVE-2016-9969
epss 0.00332 https://api.first.org/data/v1/epss?cve=CVE-2016-9969
epss 0.00332 https://api.first.org/data/v1/epss?cve=CVE-2016-9969
epss 0.00332 https://api.first.org/data/v1/epss?cve=CVE-2016-9969
epss 0.00332 https://api.first.org/data/v1/epss?cve=CVE-2016-9969
epss 0.00332 https://api.first.org/data/v1/epss?cve=CVE-2016-9969
cvssv3.1 7.5 https://bugs.chromium.org/p/webp/issues/detail?id=322
cvssv3.1 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 5.1 https://nvd.nist.gov/vuln/detail/CVE-2016-9969
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2016-9969
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2016-9969
https://bugs.chromium.org/p/webp/issues/detail?id=322
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9969
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cpe:2.3:a:webmproject:libwebp:0.5.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:webmproject:libwebp:0.5.1:*:*:*:*:*:*:*
CVE-2016-9969 https://nvd.nist.gov/vuln/detail/CVE-2016-9969
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://bugs.chromium.org/p/webp/issues/detail?id=322
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:H/PR:N/UI:R/S:U/C:H/I:H/A:H 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

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:H/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2016-9969
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2016-9969
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 0.5548
EPSS Score 0.00332
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:07:37.677103+00:00 Pypa Importer Import https://github.com/pypa/advisory-database/blob/main/vulns/webp/PYSEC-2019-256.yaml 37.0.0