Security readout for executives and security teams
Plain-English summary
A flaw in libde265 v1.0.8 can crash software that processes a malicious video file. The cited impact is denial of service, not data theft or remote code execution. Risk is highest where servers or workflows automatically decode untrusted HEVC/H.265 media.
Executive priority
Treat this as a moderate availability risk. Prioritize patching internet-facing or business-critical media processing systems first, especially services handling customer-uploaded video. It is less urgent than confirmed exploited RCE, but unattended processing can create operational disruption.
Technical view
CVE-2022-43252 is a CWE-787 heap-buffer-overflow in put_epel_16_fallback within fallback-motion.cc in libde265 v1.0.8. CVSS 3.1 is 6.5, with network attack vector, low complexity, no privileges, required user interaction, and high availability impact.
Likely exposure
Exposure is likely in systems, applications, or media pipelines that include libde265 and process externally supplied video files. The CVE affected-product metadata is incomplete, but the description specifically names libde265 v1.0.8.
Exploitation context
The provided sources describe denial of service via a crafted video file. KEV status is false, and the bundle does not cite active exploitation. User interaction is required in the CVSS vector, likely through opening or processing malicious media.
Researcher notes
The source bundle lacks complete affected CPE data and does not name a universal fixed upstream version. Debian advisories confirm distribution-level security updates. Do not assume broader affected products beyond libde265 v1.0.8 without vendor or package evidence.
Mitigation direction
- Apply Debian security updates where DLA 3280-1 or DSA-5346 applies.
- Update libde265 through the operating system or application vendor guidance.
- Limit automated processing of untrusted HEVC/H.265 files until patched.
- Inventory applications that bundle libde265 separately from system packages.
Validation and detection
- Check whether libde265 is installed or bundled in media-processing applications.
- Confirm installed packages include relevant Debian security updates where applicable.
- Identify services that accept or decode user-supplied video files.
- Review crash telemetry for libde265-related media decoding failures.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CWE-787: Exact CWE lookup
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Open ATT&CK lookupCVE-2022-43252 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H2.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/strukturag/libde265/issues/347CVE reference
- [debian-lts-announce] 20230124 [SECURITY] [DLA 3280-1] libde265 security updateCVE reference · mailing-list
- DSA-5346CVE reference · vendor-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.