CVE-2012-6706

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-14. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this weekElevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 10%CVSS: 9.8Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

A VMSF_DELTA memory corruption was discovered in unrar before 5.5.5, as used in Sophos Anti-Virus Threat Detection Engine before 3.37.2 and other products, that can lead to arbitrary code execution. An integer overflow can be caused in DataSize+CurChannel. The result is a negative value of the "DestPos" variable, which allows the attacker to write out of bounds when setting Mem[DestPos].

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
65
EG Risk 65/100CISA 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
Severity98% × 45%
Exploitation40% × 40%
Automatability30% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
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
10%
EPSS %ILE
95th
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

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

Exploitation public PoC (EG-KEV: elevated) · Automatable unknown (not published for this CVE) · Technical impact total (CVSS ≥ 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

June 22, 2017

Last Modified

June 16, 2026

Advisory Details (9)

Auto-updated Sep 30, 2026
🔬 Proof of concept available. Patch available.
generic

ClamAV: Multiple vulnerabilities (GLSA 201804-16) — Gentoo security

https://security.gentoo.org/glsa/201804-16
generic

RAR, UnRAR: Multiple vulnerabilities (GLSA 201709-24) — Gentoo security

https://security.gentoo.org/glsa/201709-24
generic

RAR and UnRAR: User-assisted execution of arbitrary code (GLSA 201708-05) — Gentoo security

https://security.gentoo.org/glsa/201708-05
generic🟡 PoC Available

Sophos News - The Sophos Blog

https://nakedsecurity.sophos.com/2012/11/05/tavis-ormandy-sophos/
generic
https://lock.cmpxchg8b.com/sophailv2.pdf
generic
https://community.sophos.com/kb/en-us/118424#six
generic
https://bugs.chromium.org/p/project-zero/issues/detail?id=1286
generic

HackAppsPro - Social Media & Devices Hack/Spy Apps of 2026

http://telussecuritylabs.com/threats/show/TSL20121207-01
generic
http://securitytracker.com/id?1027725

Affected Packages

(16 across 11 ecosystems)
Debian:11(2)
PackageVulnerable rangeFix by version rangeDependents
libclamunrar0.95.1-1 ... 0.99-3 (14 versions)
  • every version up to 0.99-4: fixed in 0.99-4
—
unrar-nonfree1:3.5.2-0.1 ... 3.4.3-1 (34 versions)
  • every version up to 1:5.5.5-1: fixed in 1:5.5.5-1
—
Debian:12(2)
PackageVulnerable rangeFix by version rangeDependents
libclamunrar0.95.1-1 ... 0.99-3 (14 versions)
  • every version up to 0.99-4: fixed in 0.99-4
—
unrar-nonfree1:3.5.2-0.1 ... 3.4.3-1 (34 versions)
  • every version up to 1:5.5.5-1: fixed in 1:5.5.5-1
—
Debian:13(2)
PackageVulnerable rangeFix by version rangeDependents
libclamunrar0.95.1-1 ... 0.99-3 (14 versions)
  • every version up to 0.99-4: fixed in 0.99-4
—
unrar-nonfree1:3.5.2-0.1 ... 3.4.3-1 (34 versions)
  • every version up to 1:5.5.5-1: fixed in 1:5.5.5-1
—
Debian:14(2)
PackageVulnerable rangeFix by version rangeDependents
libclamunrar0.95.1-1 ... 0.99-3 (14 versions)
  • every version up to 0.99-4: fixed in 0.99-4
—
unrar-nonfree1:3.5.2-0.1 ... 3.4.3-1 (34 versions)
  • every version up to 1:5.5.5-1: fixed in 1:5.5.5-1
—
Debian:7(2)
PackageVulnerable rangeFix by version rangeDependents
libclamunrar0.95.1-1 ... 0.99-0+deb7u1 (13 versions)
  • every version up to 0.99-0+deb7u2: fixed in 0.99-0+deb7u2
—
unrar-nonfree1:3.5.2-0.1 ... 3.4.3-1 (27 versions)
  • every version up to 1:4.1.4-1+deb7u2: fixed in 1:4.1.4-1+deb7u2
—
Alpine:v3.10(1)
PackageVulnerable rangeFix by version rangeDependents
clamav—
  • every version up to 0.99.4-r0: fixed in 0.99.4-r0
—
Alpine:v3.11(1)
PackageVulnerable rangeFix by version rangeDependents
clamav—
  • every version up to 0.99.4-r0: fixed in 0.99.4-r0
—
Alpine:v3.12(1)
PackageVulnerable rangeFix by version rangeDependents
clamav—
  • every version up to 0.99.4-r0: fixed in 0.99.4-r0
—
Alpine:v3.13(1)
PackageVulnerable rangeFix by version rangeDependents
clamav—
  • every version up to 0.99.4-r0: fixed in 0.99.4-r0
—
Alpine:v3.8(1)
PackageVulnerable rangeFix by version rangeDependents
clamav—
  • every version up to 0.99.4-r0: fixed in 0.99.4-r0
—
Alpine:v3.9(1)
PackageVulnerable rangeFix by version rangeDependents
clamav—
  • every version up to 0.99.4-r0: fixed in 0.99.4-r0
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 4× in last 7d / 15× 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 149 total refreshes for this CVE.

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

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2012-6706?
CVE-2012-6706 is a critical vulnerability published on June 22, 2017. A VMSF_DELTA memory corruption was discovered in unrar before 5.5.5, as used in Sophos Anti-Virus Threat Detection Engine before 3.37.2 and other products, that can lead to arbitrary code execution. An integer overflow can be caused in DataSize+CurChannel. The result is a negative value of the…
When was CVE-2012-6706 disclosed?
CVE-2012-6706 was first published on June 22, 2017, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2012-6706 actively exploited?
CVE-2012-6706 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 10% probability of exploitation in the next 30 days (95th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2012-6706?
CVE-2012-6706 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2012-6706?
A fix for CVE-2012-6706 is available: update to the fixed version the vendor names in its advisory.

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