CVE-2026-49295

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 87% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
7.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.1Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.20, a crafted H.265 bitstream can cause an out-of-bounds array write in decoder_context::process_reference_picture_set() (libde265/decctx.cc:1376). The root cause is a missing aggregate bound check on predicted short-term reference picture set entries. Individual list sizes are validated, but the combined count after predicted RPS construction can exceed the 16-entry PocStFoll array, writing at index 16. Version 1.0.20 patches the issue.

CVSS v3
7.1
EG Score
7.1(medium)
EPSS
13.5%
KEV
Not listed

Published

June 19, 2026

Last Modified

June 26, 2026

Advisory Details (2)

Auto-updated Jun 19, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github.
github Patch Available🟡 PoC Available

Out-of-bounds write in process_reference_picture_set via predicted short-term RPS · Advisory · strukturag/libde265 · GitHub

https://github.com/strukturag/libde265/security/advisories/GHSA-g2rg-wj66-w594
github_commit Patch Available

commit 691f3a3c55b3 (strukturag/libde265)

Patch available: strukturag/libde265 v1.1.0 (contains commit 691f3a3c55b3)

https://github.com/strukturag/libde265/commit/691f3a3c55b3d32478c4a49895dee061a282652b

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 21× in last 7d / 81× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-16 00:36 UTCEG score recompute
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  55. 2026-06-19 21:38 UTCEG score recompute
  56. 2026-06-19 21:37 UTCNVD updatefirst tracked

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Frequently asked(5)

What is CVE-2026-49295?
CVE-2026-49295 is a high vulnerability published on June 19, 2026. libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.20, a crafted H.265 bitstream can cause an out-of-bounds array write in decodercontext::processreferencepictureset() (libde265/decctx.cc:1376). The root cause is a missing aggregate bound check on predicted…
When was CVE-2026-49295 disclosed?
CVE-2026-49295 was first published in the National Vulnerability Database on June 19, 2026, with the most recent update on June 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-49295 actively exploited?
CVE-2026-49295 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 13.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-49295?
CVE-2026-49295 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-49295?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-49295, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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