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: 0.3%, top 74% 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
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

A fix is available — apply it.

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)
EG Risk
37(Track)
EG Risk 37/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity71% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
27%
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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibde265-examples (1.0.4-1ubuntu0.4+esm2) @ focal2026-08-30ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
libde2651.0.11-0+deb11u1 ... 1.1.1-1 (16 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
libde2651.0.11-1 ... 1.1.1-1 (10 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
libde2651.0.15-11.0.15-1+deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
libde2651.0.15-1, 1.0.16-1, 1.0.18-11.1.1-1—

Weakness Classification(1)

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

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 5× in last 7d / 55× 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.

Showing the most recent 100 of 150 total refreshes for this CVE.

  1. 2026-09-11 14:53 UTCEPSS rescore
  2. 2026-09-10 09:35 UTCEPSS rescore
  3. 2026-09-08 22:01 UTCEPSS rescore
  4. 2026-09-07 16:01 UTCEPSS rescore
  5. 2026-09-06 13:47 UTCEPSS rescore
  6. 2026-09-04 05:06 UTCEPSS rescore
  7. 2026-09-02 14:12 UTCEPSS rescore
  8. 2026-09-01 13:54 UTCEPSS rescore
  9. 2026-09-01 04:40 UTCEPSS rescore
  10. 2026-08-30 20:45 UTCEG score recompute
  11. 2026-08-30 20:45 UTCVendor advisory
  12. 2026-08-30 19:17 UTCEPSS rescore
  13. 2026-08-30 01:22 UTCEPSS rescore
  14. 2026-08-28 21:41 UTCEPSS rescore
  15. 2026-08-27 14:25 UTCEPSS rescore
  16. 2026-08-26 14:46 UTCEPSS rescore
  17. 2026-08-25 13:49 UTCEPSS rescore
  18. 2026-08-25 01:21 UTCEG score recompute
  19. 2026-08-25 01:21 UTCVendor advisory
  20. 2026-08-24 13:59 UTCEG score recompute
  21. 2026-08-24 13:59 UTCVendor advisory
  22. 2026-08-23 22:22 UTCVendor advisory
  23. 2026-08-23 10:54 UTCVendor advisory
  24. 2026-08-22 23:31 UTCVendor advisory
  25. 2026-08-21 18:10 UTCVendor advisory
Show 75 more
  1. 2026-08-21 06:43 UTCEG score recompute
  2. 2026-08-21 06:43 UTCVendor advisory
  3. 2026-08-20 22:55 UTCEPSS rescore
  4. 2026-08-20 19:21 UTCVendor advisory
  5. 2026-08-20 07:59 UTCEG score recompute
  6. 2026-08-20 07:59 UTCVendor advisory
  7. 2026-08-19 17:04 UTCEPSS rescore
  8. 2026-08-19 05:52 UTCEG score recompute
  9. 2026-08-19 05:52 UTCVendor advisory
  10. 2026-08-18 13:48 UTCEPSS rescore
  11. 2026-08-17 14:06 UTCEG score recompute
  12. 2026-08-17 14:06 UTCVendor advisory
  13. 2026-08-17 13:47 UTCEPSS rescore
  14. 2026-08-17 02:44 UTCVendor advisory
  15. 2026-08-16 15:22 UTCEG score recompute
  16. 2026-08-16 15:22 UTCVendor advisory
  17. 2026-08-16 14:56 UTCEPSS rescore
  18. 2026-08-16 04:00 UTCEG score recompute
  19. 2026-08-16 04:00 UTCVendor advisory
  20. 2026-08-16 02:14 UTCEPSS rescore
  21. 2026-08-15 16:38 UTCVendor advisory
  22. 2026-08-15 05:16 UTCEG score recompute
  23. 2026-08-15 05:16 UTCVendor advisory
  24. 2026-08-15 01:30 UTCEPSS rescore
  25. 2026-08-14 17:53 UTCVendor advisory
  26. 2026-08-14 06:32 UTCEG score recompute
  27. 2026-08-14 06:32 UTCVendor advisory
  28. 2026-08-13 22:00 UTCEPSS rescore
  29. 2026-08-13 19:10 UTCVendor advisory
  30. 2026-08-13 07:49 UTCVendor advisory
  31. 2026-08-12 20:14 UTCEG score recompute
  32. 2026-08-12 20:14 UTCVendor advisory
  33. 2026-08-12 13:51 UTCEPSS rescore
  34. 2026-08-12 08:52 UTCVendor advisory
  35. 2026-08-11 21:30 UTCEG score recompute
  36. 2026-08-11 21:30 UTCVendor advisory
  37. 2026-08-11 10:08 UTCEG score recompute
  38. 2026-08-11 10:08 UTCVendor advisory
  39. 2026-08-11 00:00 UTCEPSS rescore
  40. 2026-08-10 22:46 UTCVendor advisory
  41. 2026-08-10 11:24 UTCVendor advisory
  42. 2026-08-10 00:01 UTCEG score recompute
  43. 2026-08-10 00:01 UTCVendor advisory
  44. 2026-08-09 13:46 UTCEPSS rescore
  45. 2026-08-09 12:40 UTCVendor advisory
  46. 2026-08-09 01:18 UTCEG score recompute
  47. 2026-08-09 01:18 UTCVendor advisory
  48. 2026-08-08 16:37 UTCEPSS rescore
  49. 2026-08-08 13:56 UTCVendor advisory
  50. 2026-08-08 02:34 UTCEG score recompute
  51. 2026-08-08 02:34 UTCVendor advisory
  52. 2026-08-07 15:12 UTCVendor advisory
  53. 2026-08-07 03:50 UTCVendor advisory
  54. 2026-08-06 16:29 UTCEG score recompute
  55. 2026-08-06 16:29 UTCVendor advisory
  56. 2026-08-06 13:47 UTCEPSS rescore
  57. 2026-08-06 05:06 UTCEG score recompute
  58. 2026-08-06 05:06 UTCVendor advisory
  59. 2026-08-05 19:17 UTCEPSS rescore
  60. 2026-08-05 17:45 UTCVendor advisory
  61. 2026-08-05 02:43 UTCVendor advisory
  62. 2026-08-04 15:18 UTCEG score recompute
  63. 2026-08-04 15:18 UTCVendor advisory
  64. 2026-08-04 15:10 UTCEPSS rescore
  65. 2026-08-04 10:39 UTCEPSS rescore
  66. 2026-08-03 19:26 UTCEG score recompute
  67. 2026-08-03 19:26 UTCVendor advisory
  68. 2026-08-03 10:36 UTCEPSS rescore
  69. 2026-08-02 18:56 UTCVendor advisory
  70. 2026-08-02 07:34 UTCEG score recompute
  71. 2026-08-02 07:34 UTCVendor advisory
  72. 2026-08-02 02:27 UTCEPSS rescore
  73. 2026-08-01 20:12 UTCVendor advisory
  74. 2026-08-01 08:50 UTCEG score recompute
  75. 2026-08-01 08:50 UTCVendor advisory

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 0% probability of exploitation in the next 30 days, which ranks it in the top 73.2% of all scored CVEs.
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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