Format string vulnerability in the movemail utility in (1) Emacs 20.x, 21.3, and possibly…
Priority MEDIUM 40Published · 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
- Partial · Partial · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
Format string vulnerability in the movemail utility in (1) Emacs 20.x, 21.3, and possibly other versions, and (2) XEmacs 21.4 and earlier, allows remote malicious POP3 servers to execute arbitrary code via crafted packets.
Why it matters now
EPSS 0.04329 91st percentileScored 2026-11-07
Fix Fixed Red Hat: 4 advisories
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
Remediation
Red Hat 4 advisories
- RHSA-2005:133 Released 2005-02-15 · Red Hat rating Importantxemacs security update
- Red Hat Enterprise Linux AS version 4 xemacs-21.4.15-10.EL.1, xemacs-21.4.15-10.EL.1.i386, xemacs-21.4.15-10.EL.1.ia64 +17
- Red Hat Enterprise Linux Desktop version 4 xemacs-21.4.15-10.EL.1, xemacs-21.4.15-10.EL.1.i386, xemacs-common-21.4.15-10.EL.1 +7
- Red Hat Enterprise Linux ES version 4 xemacs-21.4.15-10.EL.1, xemacs-21.4.15-10.EL.1.i386, xemacs-21.4.15-10.EL.1.ia64 +12
- Red Hat Enterprise Linux WS version 4 xemacs-21.4.15-10.EL.1, xemacs-21.4.15-10.EL.1.i386, xemacs-21.4.15-10.EL.1.ia64 +12
- RHSA-2005:110 Released 2005-02-15 · Red Hat rating Importantemacs security update
- Red Hat Enterprise Linux AS version 4 emacs-21.3-19.EL.1, emacs-21.3-19.EL.1.i386, emacs-21.3-19.EL.1.ia64 +17
- Red Hat Enterprise Linux Desktop version 4 emacs-21.3-19.EL.1, emacs-21.3-19.EL.1.i386, emacs-common-21.3-19.EL.1 +7
- Red Hat Enterprise Linux ES version 4 emacs-21.3-19.EL.1, emacs-21.3-19.EL.1.i386, emacs-21.3-19.EL.1.ia64 +12
- Red Hat Enterprise Linux WS version 4 emacs-21.3-19.EL.1, emacs-21.3-19.EL.1.i386, emacs-21.3-19.EL.1.ia64 +12
- RHSA-2005:134 Released 2005-02-10 · Red Hat rating Importantxemacs security update
- Red Hat Desktop version 3 xemacs-21.4.13-8.ent.1, xemacs-21.4.13-8.ent.1.i386, xemacs-el-21.4.13-8.ent.1 +3
- Red Hat Enterprise Linux AS version 3 xemacs-21.4.13-8.ent.1, xemacs-21.4.13-8.ent.1.i386, xemacs-21.4.13-8.ent.1.ia64 +9
- Red Hat Enterprise Linux ES version 3 xemacs-21.4.13-8.ent.1, xemacs-21.4.13-8.ent.1.i386, xemacs-21.4.13-8.ent.1.ia64 +6
- Red Hat Enterprise Linux WS version 3 xemacs-21.4.13-8.ent.1, xemacs-21.4.13-8.ent.1.i386, xemacs-21.4.13-8.ent.1.ia64 +6
Show 1 more Red Hat advisories
- RHSA-2005:112 Released 2005-02-10 · Red Hat rating Importantemacs security update
- Red Hat Desktop version 3 emacs-21.3-4.1, emacs-21.3-4.1.i386, emacs-el-21.3-4.1 +3
- Red Hat Enterprise Linux AS version 3 emacs-21.3-4.1, emacs-21.3-4.1.i386, emacs-21.3-4.1.ia64 +9
- Red Hat Enterprise Linux ES version 3 emacs-21.3-4.1, emacs-21.3-4.1.i386, emacs-21.3-4.1.ia64 +6
- Red Hat Enterprise Linux WS version 3 emacs-21.3-4.1, emacs-21.3-4.1.i386, emacs-21.3-4.1.ia64 +6
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Desktop version 3 | Fixed | RHSA-2005:112, RHSA-2005:134 |
| Red Hat Enterprise Linux AS version 3 | Fixed | RHSA-2005:112, RHSA-2005:134 |
| Red Hat Enterprise Linux AS version 4 | Fixed | RHSA-2005:110, RHSA-2005:133 |
| Red Hat Enterprise Linux Desktop version 4 | Fixed | RHSA-2005:110, RHSA-2005:133 |
| Red Hat Enterprise Linux ES version 3 | Fixed | RHSA-2005:112, RHSA-2005:134 |
| Red Hat Enterprise Linux ES version 4 | Fixed | RHSA-2005:110, RHSA-2005:133 |
| Red Hat Enterprise Linux WS version 3 | Fixed | RHSA-2005:112, RHSA-2005:134 |
| Red Hat Enterprise Linux WS version 4 | Fixed | RHSA-2005:110, RHSA-2005:133 |
Timeline
- 2026-10-02 Threatist record created from CVE-2005-0100
- 2026-10-03 Alias added: GHSA-39qf-gxpw-7vqf
References
More GNU Emacs vulnerabilities
- TI-2024-36089 In elisp-mode.el in GNU Emacs before 30.1, a user who chooses to invoke… CVSS 3.1HIGH 7.8
- TI-2023-12576 emacsclient-mail.desktop in Emacs 28.1 through 28.2 is vulnerable to Emacs Lisp code… CVSS 3.1HIGH 7.8
- TI-2022-23951 GNU Emacs through 28.2 allows attackers to execute commands via shell metacharacters in… CVSS 3.1CRITICAL 9.8
- TI-2024-26287 In Emacs before 29.4, org-link-expand-abbrev in lisp/ol.el expands a %(...) link abbrev… CVSS 3.1CRITICAL 9.8
- TI-2007-05829 Stack-based buffer overflow in emacs allows user-assisted attackers to cause a denial of… CVSS 2.0HIGH 10.0
- TI-2017-10588 GNU Emacs before 25.3 allows remote attackers to execute arbitrary code via email with… CVSS 3.0HIGH 8.8
Sources
- CVE-2005-0100 · CVE Program
- CVE-2005-0100 · NVD
- FIRST EPSS
- GHSA-39qf-gxpw-7vqf · GitHub Advisory Database · CC BY 4.0
- CVE-2005-0100 · Red Hat security data · CC BY 4.0
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