CVE-2017-7208

HIGHNVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2022-05-17. NVD baseline CVSS 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1.1%CVSS: 7.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

The decode_residual function in libavcodec in libav 9.21 allows remote attackers to cause a denial of service (buffer over-read) or obtain sensitive information from process memory via a crafted h264 video file.

CVSS v3
7.1
EG Score
7.1HIGHmedium confidence
EG Risk
37
EG Risk 37/100CISA SSVC

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%
Exploitation1% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
1.1%
EPSS %ILE
65th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

March 21, 2017

Last Modified

June 17, 2026

References (6)

Affected Packages

(2 across 2 ecosystems)
Debian:7(1)
PackageVulnerable rangeFix by version rangeDependents
libav6:0.8.10-1 ... 6:0.8.9-1 (16 versions)
  • every version up to 6:0.8.21-0+deb7u1: fixed in 6:0.8.21-0+deb7u1
—
Debian:8(1)
PackageVulnerable rangeFix by version rangeDependents
libav6:11.3-1 ... 6:11.9-1~deb8u1 (12 versions)
  • every version up to 6:11.11-1~deb8u1: fixed in 6:11.11-1~deb8u1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 24× 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 183 total refreshes for this CVE.

  1. 2026-10-05 17:39 UTCEPSS rescore
  2. 2026-10-04 23:18 UTCEPSS rescore
  3. 2026-10-03 14:21 UTCEPSS rescore
  4. 2026-10-03 14:21 UTCEPSS rescore
  5. 2026-09-30 14:59 UTCEPSS rescore
  6. 2026-09-30 09:39 UTCEG score recompute
  7. 2026-09-28 13:45 UTCEPSS rescore
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  17. 2026-09-18 14:06 UTCOSV refresh
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  1. 2026-09-04 13:56 UTCEPSS rescore
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  6. 2026-08-30 19:13 UTCEPSS rescore
  7. 2026-08-30 16:21 UTCOSV refresh
  8. 2026-08-28 21:36 UTCEPSS rescore
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  25. 2026-08-05 19:13 UTCEPSS rescore
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  29. 2026-07-30 16:24 UTCEPSS rescore
  30. 2026-07-30 01:26 UTCEPSS rescore
  31. 2026-07-29 09:07 UTCOSV refresh
  32. 2026-07-28 15:32 UTCEPSS rescore
  33. 2026-07-23 14:15 UTCEPSS rescore
  34. 2026-07-23 01:30 UTCEG score recompute
  35. 2026-07-22 22:10 UTCEG score recompute
  36. 2026-07-22 14:04 UTCEPSS rescore
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  44. 2026-07-18 10:01 UTCEPSS rescore
  45. 2026-07-16 16:59 UTCEPSS rescore
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  49. 2026-07-15 01:56 UTCEPSS rescore
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  51. 2026-07-13 22:26 UTCEPSS rescore
  52. 2026-07-13 22:26 UTCEPSS rescore
  53. 2026-07-12 05:43 UTCEPSS rescore
  54. 2026-07-12 01:52 UTCOSV refresh
  55. 2026-07-11 08:24 UTCEPSS rescore
  56. 2026-07-09 19:06 UTCEPSS rescore
  57. 2026-07-08 15:11 UTCEPSS rescore
  58. 2026-07-07 13:42 UTCEPSS rescore
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  68. 2026-06-30 23:19 UTCEPSS rescore
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  70. 2026-06-29 14:03 UTCEPSS rescore
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  72. 2026-06-28 04:53 UTCEPSS rescore
  73. 2026-06-28 04:53 UTCEPSS rescore
  74. 2026-06-27 03:06 UTCEPSS rescore
  75. 2026-06-25 13:47 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2017-7208?
CVE-2017-7208 is a high vulnerability published on March 21, 2017. The decode_residual function in libavcodec in libav 9.21 allows remote attackers to cause a denial of service (buffer over-read) or obtain sensitive information from process memory via a crafted h264 video file.
When was CVE-2017-7208 disclosed?
CVE-2017-7208 was first published on March 21, 2017, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-7208 actively exploited?
CVE-2017-7208 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.1% probability of exploitation in the next 30 days (65th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2017-7208?
CVE-2017-7208 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2017-7208?
A fix for CVE-2017-7208 is available: update to the fixed version the vendor names in its advisory.

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