CVE-2012-1103

MEDIUMCVSS v2 · 4.34.3—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 4.3 — v2 rates that MEDIUM (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:M/Au:N/C:P/I:N/A:N. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 2.3% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.

Sources: epss, nvd_v2
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS v2: 4.3Exploit: None knownExposed: 0

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

emacs/notmuch-mua.el in Notmuch before 0.11.1, when using the Emacs interface, allows user-assisted remote attackers to read arbitrary files via crafted MML tags, which are not properly quoted in an email reply cna cause the files to be attached to the message.

CVSS v2.0 (legacy)
4.3MEDIUMNVD never assigned a CVSS v3 rating to this CVE
EG Score
4.3(low)
EG Risk
25(Track)
EG Risk 25/100SSVC: 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
Severity43% × 45%
Exploitation2% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
2%
EPSS %ILE
82%
KEV
Not listed

Published

September 25, 2012

Last Modified

April 29, 2026

References (14)

Affected Packages

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
notmuch—0.11.1-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
notmuch—0.11.1-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
notmuch—0.11.1-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
notmuch—0.11.1-1—
Debian:6.0(1)
PackageVulnerable rangeFixed inDependents
notmuch0.3.10.3.1+squeeze1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 17× 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 127 total refreshes for this CVE.

  1. 2026-08-27 14:20 UTCEPSS rescore
  2. 2026-08-26 14:40 UTCEPSS rescore
  3. 2026-08-24 02:52 UTCOSV refresh
  4. 2026-08-23 00:12 UTCEPSS rescore
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  12. 2026-08-07 23:56 UTCOSV refresh
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  19. 2026-07-26 13:45 UTCEG score recompute▲ 4.30
  20. 2026-07-25 14:12 UTCEPSS rescore
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  22. 2026-07-23 01:06 UTCEG score recompute
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  24. 2026-07-22 21:49 UTCEG score recompute
  25. 2026-07-22 16:50 UTCOSV refresh
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  1. 2026-07-22 14:04 UTCEPSS rescore
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  22. 2026-07-05 11:59 UTCOSV refresh
  23. 2026-07-05 02:26 UTCEPSS rescore
  24. 2026-07-04 06:27 UTCEPSS rescore
  25. 2026-07-02 14:01 UTCEPSS rescore
  26. 2026-07-01 15:02 UTCEPSS rescore
  27. 2026-06-30 23:19 UTCEPSS rescore
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  44. 2026-06-18 17:49 UTCEPSS rescore
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  48. 2026-06-16 23:14 UTCOSV refresh
  49. 2026-06-16 17:49 UTCEPSS rescore
  50. 2026-06-16 17:49 UTCEPSS rescore
  51. 2026-06-15 17:44 UTCEPSS rescore
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  72. 2026-06-01 13:49 UTCEPSS rescore
  73. 2026-05-31 22:28 UTCEPSS rescore
  74. 2026-05-31 22:28 UTCEPSS rescore
  75. 2026-05-31 00:14 UTCEPSS rescore

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Frequently asked(4)

What is CVE-2012-1103?
CVE-2012-1103 is a medium vulnerability published on September 25, 2012. emacs/notmuch-mua.el in Notmuch before 0.11.1, when using the Emacs interface, allows user-assisted remote attackers to read arbitrary files via crafted MML tags, which are not properly quoted in an email reply cna cause the files to be attached to the message.
When was CVE-2012-1103 disclosed?
CVE-2012-1103 was first published in the National Vulnerability Database on September 25, 2012, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2012-1103 actively exploited?
CVE-2012-1103 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2% probability of exploitation in the next 30 days, which ranks it in the top 17.9% of all scored CVEs.
How do I remediate CVE-2012-1103?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2012-1103, 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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