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CVE Record

CVE-2022-43236: Libde265 v1.0.8 was discovered to contain a stack-buffer-overflow vulnerability via put_qpel_fallback<unsig...

Libde265 v1.0.8 was discovered to contain a stack-buffer-overflow vulnerability via put_qpel_fallback<unsigned short> in fallback-motion.cc. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted video file.

MediumCVSS 6.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

A crafted video file can crash software that uses libde265 v1.0.8 to process HEVC/H.265 media. The known impact is denial of service, not data theft or remote code execution. Business urgency is highest where user-supplied video is accepted, previewed, transcoded, or scanned automatically.

Executive priority

Treat this as a targeted availability risk, not a broad breach emergency. Patch during normal vulnerability remediation cycles, faster for internet-facing upload or transcoding services where crashes affect customers or operations.

Technical view

CVE-2022-43236 is a stack buffer overflow in libde265 v1.0.8, in put_qpel_fallback<unsigned short> within fallback-motion.cc. The CVSS 3.1 vector is 6.5, with high availability impact, no confidentiality or integrity impact, and required user interaction.

Likely exposure

Systems are most likely exposed when applications, containers, desktops, or media pipelines use libde265 to decode HEVC/H.265 content, especially from external users or untrusted sources. The bundle does not enumerate all downstream affected products.

Exploitation context

The supplied sources describe denial of service through a crafted video file. CISA KEV status is false, and the provided bundle does not cite active exploitation. User interaction is reflected in the CVSS vector.

Researcher notes

Evidence identifies libde265 v1.0.8 and a specific function, but the bundle’s affected-product metadata is incomplete. Use package advisories, SBOMs, and binary dependency checks to determine downstream exposure. Do not assume exploit activity without additional evidence.

Mitigation direction

  • Apply libde265 security updates from Debian or the relevant software vendor.
  • Prioritize systems that process user-supplied HEVC/H.265 video files.
  • Reduce automatic previewing or decoding of untrusted video until updated.
  • Check non-Debian vendor guidance for fixed package versions.
  • Monitor media-processing crashes after deployment for regression or residual exposure.

Validation and detection

  • Inventory installed libde265 packages and embedded library copies.
  • Review containers and media-processing applications for libde265 dependencies.
  • Confirm Debian systems include fixes from DLA-3280-1 or DSA-5346 where applicable.
  • Map routes, upload flows, or services that decode untrusted video.
  • Validate updates in staging using non-malicious media regression tests.
Prepared
Confidence
medium
Sources
5

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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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CVE-2022-43236 mapping review

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Vulnerability profileCVE Program record
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

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
6.5CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H2.83.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.5Medium
CVSS 3.1 vector shape for CVE-2022-43236Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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