The strchr function in procmime.c in Claws Mail (aka claws-mail) 3.8.1 allows remote…
Priority LOW 28Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
The strchr function in procmime.c in Claws Mail (aka claws-mail) 3.8.1 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted email.
Why it matters now
EPSS 0.02772 86th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:claws-mail:claws-mail:3.8.1:*:*:*:*:*:*:* | 3.8.1 | Vulnerable | Claws Mail |
- cpe:2.3:a:claws-mail:claws-mail:3.8.1:*:*:*:*:*:*:* Versions 3.8.1 Vulnerable ·Claws Mail
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2012-4507
- 2026-10-03 Alias added: GHSA-6q7r-wpp2-5ggq
References
Patch 2
Advisory 1
More Claws Mail Claws-mail vulnerabilities
- TI-2020-12530 common/session.c in Claws Mail before 3.17.6 has a protocol violation because suffix data after STARTTLS is mishandled. CVSS 3.1CRITICAL 9.8
- TI-2015-07079 Multiple stack-based buffer overflows in the (1) conv_jistoeuc, (2) conv_euctojis, and… CVSS 3.0HIGH 7.3
- TI-2020-12664 In imap_scan_tree_recursive in Claws Mail through 3.17.6, a malicious IMAP server can… CVSS 3.1HIGH 7.5
- TI-2015-07158 Stack-based buffer overflow in the conv_euctojis function in codeconv.c in Claws Mail… CVSS 3.0HIGH 7.3
- TI-2014-02063 plugins/rssyl/feed.c in Claws Mail before 3.10.0 disables the CURLOPT_SSL_VERIFYHOST… CVSS 2.0MEDIUM 6.8
- TI-2021-15619 textview_uri_security_check in textview.c in Claws Mail before 3.18.0, and Sylpheed… CVSS 3.1MEDIUM 6.1
Sources
- CVE-2012-4507 · CVE Program
- CVE-2012-4507 · NVD
- FIRST EPSS
- GHSA-6q7r-wpp2-5ggq · GitHub Advisory Database · CC BY 4.0
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