CVE-2013-3346

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-03-03), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.8EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 79%CVSS: 9.8Exploit: cisa kev · ssvc active · Metasploit · Exploit-DB (verified) · epss top5pct · epss high · public exploitExposed services: Not assessed

A fix is available — apply it.

Adobe Reader and Acrobat 9.x before 9.5.5, 10.x before 10.1.7, and 11.x before 11.0.03 allow attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than CVE-2013-2718, CVE-2013-2719, CVE-2013-2720, CVE-2013-2721, CVE-2013-2722, CVE-2013-2723, CVE-2013-2725, CVE-2013-2726, CVE-2013-2731, CVE-2013-2732, CVE-2013-2734, CVE-2013-2735, CVE-2013-2736, CVE-2013-3337, CVE-2013-3338, CVE-2013-3339, CVE-2013-3340, and CVE-2013-3341.

CVSS v3
9.8
EG Score
9.8CRITICALhigh confidence
EG Risk
84
EG Risk 84/100CISA 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%
Exploitation100% × 40%
Automatability0% × 15%
CISA SSVC: Track at low, Attend at medium and Act at high mission impact.
Action: A fix is available. Apply it within your standard update timelines at low, sooner than that at medium and as soon as possible at high mission impact.
EPSS PROB
79%
EPSS %ILE
99th
KEV
⚠ Exploited

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

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

Exploitation active (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). 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

August 30, 2013

Last Modified

April 21, 2026

Advisory Details (2)

Auto-updated Oct 1, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-3346
generic🔴 Active Exploitation

Acroread bugs should be UI:R and Automatable:No · Issue #199 · cisagov/vulnrichment · GitHub

https://github.com/cisagov/vulnrichment/issues/199

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatacroread-0:9.5.5-1.el6_42013-05-15redhat

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.

Weakness Classification(2)

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 80× in last 7d / 370× 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 1,568 total refreshes for this CVE.

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

Publicly available exploits

(3 references)

Working exploit code is in the public domain (2 Metasploit modules) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-30394✓ verified
    First seen Dec 17, 2013

    Adobe Reader ToolButton - Use-After-Free (Metasploit)

    Open source ↗
  • Metasploitexploit/windows/browser/adobe_toolbutton✓ verified
    First seen Aug 8, 2013

    Adobe Reader ToolButton Use After Free

    Open source ↗
  • Metasploitexploit/windows/fileformat/adobe_toolbutton✓ verified
    First seen Aug 8, 2013

    Adobe Reader ToolButton Use After Free

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(6)

What is CVE-2013-3346?
CVE-2013-3346 is a critical vulnerability published on August 30, 2013. Adobe Reader and Acrobat 9.x before 9.5.5, 10.x before 10.1.7, and 11.x before 11.0.03 allow attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than CVE-2013-2718, CVE-2013-2719, CVE-2013-2720, CVE-2013-2721,…
When was CVE-2013-3346 disclosed?
CVE-2013-3346 was first published on August 30, 2013, with the most recent update on April 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2013-3346 actively exploited?
Yes. CISA added CVE-2013-3346 to the Known Exploited Vulnerabilities catalog on March 3, 2022, affecting Adobe Reader and Acrobat. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate attention. A fix is available. Apply it.
What is the CVSS score of CVE-2013-3346?
CVE-2013-3346 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2013-3346?
CVE-2013-3346 affects Adobe Reader and Acrobat.
How do I remediate CVE-2013-3346?
A fix for CVE-2013-3346 is available: update to the fixed version the vendor names in its advisory.

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