Search for vulnerabilities
Vulnerability details: VCID-jppg-stpt-gqhm
Vulnerability ID VCID-jppg-stpt-gqhm
Aliases CVE-2023-40476
Summary GStreamer H265 Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the parsing of H265 encoded video files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. . Was ZDI-CAN-21768.
Status Published
Exploitability 0.5
Weighted Severity 7.9
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-121 Stack-based Buffer Overflow
CWE-190 Integer Overflow or Wraparound
System Score Found at
cvssv3 5.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-40476.json
epss 0.06354 https://api.first.org/data/v1/epss?cve=CVE-2023-40476
epss 0.06354 https://api.first.org/data/v1/epss?cve=CVE-2023-40476
epss 0.06354 https://api.first.org/data/v1/epss?cve=CVE-2023-40476
epss 0.06354 https://api.first.org/data/v1/epss?cve=CVE-2023-40476
epss 0.06354 https://api.first.org/data/v1/epss?cve=CVE-2023-40476
epss 0.06354 https://api.first.org/data/v1/epss?cve=CVE-2023-40476
epss 0.06354 https://api.first.org/data/v1/epss?cve=CVE-2023-40476
epss 0.06354 https://api.first.org/data/v1/epss?cve=CVE-2023-40476
epss 0.06354 https://api.first.org/data/v1/epss?cve=CVE-2023-40476
epss 0.06354 https://api.first.org/data/v1/epss?cve=CVE-2023-40476
epss 0.06354 https://api.first.org/data/v1/epss?cve=CVE-2023-40476
epss 0.06354 https://api.first.org/data/v1/epss?cve=CVE-2023-40476
epss 0.06354 https://api.first.org/data/v1/epss?cve=CVE-2023-40476
epss 0.06354 https://api.first.org/data/v1/epss?cve=CVE-2023-40476
epss 0.06354 https://api.first.org/data/v1/epss?cve=CVE-2023-40476
epss 0.06354 https://api.first.org/data/v1/epss?cve=CVE-2023-40476
epss 0.06354 https://api.first.org/data/v1/epss?cve=CVE-2023-40476
epss 0.06354 https://api.first.org/data/v1/epss?cve=CVE-2023-40476
epss 0.06354 https://api.first.org/data/v1/epss?cve=CVE-2023-40476
epss 0.06354 https://api.first.org/data/v1/epss?cve=CVE-2023-40476
epss 0.08384 https://api.first.org/data/v1/epss?cve=CVE-2023-40476
epss 0.08384 https://api.first.org/data/v1/epss?cve=CVE-2023-40476
cvssv3.1 8.3 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3 8.8 https://gstreamer.freedesktop.org/security/sa-2023-0008.html
ssvc Track https://gstreamer.freedesktop.org/security/sa-2023-0008.html
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2023-40476
cvssv3 8.8 https://www.zerodayinitiative.com/advisories/ZDI-23-1458/
ssvc Track https://www.zerodayinitiative.com/advisories/ZDI-23-1458/
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-40476.json
https://api.first.org/data/v1/epss?cve=CVE-2023-40476
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-40474
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-40475
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-40476
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
1053259 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1053259
2254589 https://bugzilla.redhat.com/show_bug.cgi?id=2254589
cpe:2.3:a:gstreamer_project:gstreamer:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:gstreamer_project:gstreamer:*:*:*:*:*:*:*:*
CVE-2023-40476 https://nvd.nist.gov/vuln/detail/CVE-2023-40476
RHSA-2024:2287 https://access.redhat.com/errata/RHSA-2024:2287
RHSA-2024:3060 https://access.redhat.com/errata/RHSA-2024:3060
sa-2023-0008.html https://gstreamer.freedesktop.org/security/sa-2023-0008.html
USN-6526-1 https://usn.ubuntu.com/6526-1/
ZDI-23-1458 https://www.zerodayinitiative.com/advisories/ZDI-23-1458/
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-40476.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

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:R/S:U/C:H/I:H/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

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://gstreamer.freedesktop.org/security/sa-2023-0008.html
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: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2024-07-23T19:53:11Z/ Found at https://gstreamer.freedesktop.org/security/sa-2023-0008.html
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2023-40476
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:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://www.zerodayinitiative.com/advisories/ZDI-23-1458/
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: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2024-07-23T19:53:11Z/ Found at https://www.zerodayinitiative.com/advisories/ZDI-23-1458/
Exploit Prediction Scoring System (EPSS)
Percentile 0.906
EPSS Score 0.06354
Published At Aug. 14, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:29:18.780957+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/edge/community.json 37.0.0