CVE-2007-5740

HIGHCVSS v2 · 7.57.5—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 7.5 — v2 rates that HIGH (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:L/Au:N/C:P/I:P/A:P. 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 12.4% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.

Triggered by: NVD CVSS v2.0 (legacy fallback)
Sources: epss, nvd_v2
Weaponized
7.5EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • Public exploit code is available (Exploit-DB (verified), epss top5pct, public exploit)
CISA-KEV: Not listedEPSS PROB: 12%CVSS v2: 7.5Exploit: Exploit-DB (verified) · epss top5pct · public exploitExposed services: Not assessed

A fix is available — apply it.

The format string protection mechanism in IMAPD for Perdition Mail Retrieval Proxy 1.17 and earlier allows remote attackers to execute arbitrary code via an IMAP tag with a null byte followed by a format string specifier, which is not counted by the mechanism.

CVSS v2.0 (legacy)
7.5HIGHNVD never assigned a CVSS v3 rating to this CVE
EG Score
7.5HIGHlow confidence
EG Risk
64
EG Risk 64/100CISA 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
Severity75% × 45%
Exploitation65% × 40%
Automatability30% × 15%
CISA SSVC: Track at low, Track or Track* at medium and Track* or 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
12%
EPSS %ILE
96th
KEV
Not listed

CISA SSVCTrack at low, Track or Track* at medium and Track* or 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: weaponized) · Automatable unknown (not published for this CVE) · Technical impact unknown (not published for this CVE). 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

October 31, 2007

Last Modified

April 23, 2026

References (22)

Affected Packages

(7 across 7 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
perdition—
  • every version up to 1.17.1-1: fixed in 1.17.1-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
perdition—
  • every version up to 1.17.1-1: fixed in 1.17.1-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
perdition—
  • every version up to 1.17.1-1: fixed in 1.17.1-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
perdition—
  • every version up to 1.17.1-1: fixed in 1.17.1-1
—
Debian:3.1(1)
PackageVulnerable rangeFix by version rangeDependents
perdition1.15-5
  • every version up to 1.15-5sarge1: fixed in 1.15-5sarge1
—
Debian:4.0(1)
PackageVulnerable rangeFix by version rangeDependents
perdition1.17-7
  • every version up to 1.17-7etch1: fixed in 1.17-7etch1
—
Debian:5.0(1)
PackageVulnerable rangeFix by version rangeDependents
perdition—
  • every version up to 1.17-8+lenny1: fixed in 1.17-8+lenny1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 16× 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 125 total refreshes for this CVE.

  1. 2026-10-09 20:00 UTCEPSS rescore
  2. 2026-10-08 16:33 UTCEPSS rescore
  3. 2026-10-07 23:37 UTCEPSS rescore
  4. 2026-10-06 15:09 UTCEPSS rescore
  5. 2026-10-05 17:37 UTCEPSS rescore
  6. 2026-10-04 23:15 UTCEPSS rescore
  7. 2026-10-04 08:37 UTCOSV refresh
  8. 2026-10-03 14:20 UTCEPSS rescore
  9. 2026-10-01 19:42 UTCEPSS rescore
  10. 2026-09-30 14:57 UTCEPSS rescore
  11. 2026-09-29 07:44 UTCEG score recompute
  12. 2026-09-18 19:20 UTCEPSS rescore
  13. 2026-09-17 19:20 UTCEPSS rescore
  14. 2026-09-15 03:04 UTCEPSS rescore
  15. 2026-09-14 22:44 UTCOSV refresh
  16. 2026-09-12 14:54 UTCEPSS rescore
  17. 2026-09-05 15:22 UTCEPSS rescore
  18. 2026-09-04 13:55 UTCEPSS rescore
  19. 2026-09-04 04:59 UTCEPSS rescore
  20. 2026-08-30 01:14 UTCEPSS rescore
  21. 2026-08-26 22:16 UTCOSV refresh
  22. 2026-08-10 12:39 UTCOSV refresh
  23. 2026-08-08 16:30 UTCEPSS rescore
  24. 2026-08-07 16:20 UTCEPSS rescore
  25. 2026-08-06 13:41 UTCEPSS rescore
Show 75 more
  1. 2026-08-05 19:11 UTCEPSS rescore
  2. 2026-08-04 15:03 UTCEPSS rescore
  3. 2026-07-30 16:22 UTCEPSS rescore
  4. 2026-07-30 01:25 UTCEPSS rescore
  5. 2026-07-28 15:30 UTCEPSS rescore
  6. 2026-07-26 13:33 UTCEG score recompute▲ 7.50
  7. 2026-07-25 14:12 UTCEPSS rescore
  8. 2026-07-25 13:11 UTCOSV refresh
  9. 2026-07-24 14:11 UTCEPSS rescore
  10. 2026-07-23 14:13 UTCEPSS rescore
  11. 2026-07-23 00:54 UTCEG score recompute
  12. 2026-07-23 00:33 UTCEG score recompute
  13. 2026-07-22 23:59 UTCEG score recompute
  14. 2026-07-22 21:38 UTCEG score recompute
  15. 2026-07-22 14:03 UTCEPSS rescore
  16. 2026-07-21 15:19 UTCEPSS rescore
  17. 2026-07-20 17:03 UTCEPSS rescore
  18. 2026-07-18 09:59 UTCEPSS rescore
  19. 2026-07-16 16:58 UTCEPSS rescore
  20. 2026-07-15 16:54 UTCEPSS rescore
  21. 2026-07-15 16:54 UTCEPSS rescore
  22. 2026-07-15 01:55 UTCEPSS rescore
  23. 2026-07-13 06:07 UTCEPSS rescore
  24. 2026-07-11 08:22 UTCEPSS rescore
  25. 2026-07-08 15:09 UTCEPSS rescore
  26. 2026-07-08 07:57 UTCOSV refresh
  27. 2026-07-06 16:22 UTCEPSS rescore
  28. 2026-07-06 02:19 UTCEPSS rescore
  29. 2026-07-05 02:26 UTCEPSS rescore
  30. 2026-07-04 06:27 UTCEPSS rescore
  31. 2026-07-04 06:27 UTCEPSS rescore
  32. 2026-07-02 14:00 UTCEPSS rescore
  33. 2026-07-01 15:02 UTCEPSS rescore
  34. 2026-07-01 15:02 UTCEPSS rescore
  35. 2026-06-30 23:19 UTCEPSS rescore
  36. 2026-06-30 23:19 UTCEPSS rescore
  37. 2026-06-28 04:52 UTCEPSS rescore
  38. 2026-06-27 03:04 UTCEPSS rescore
  39. 2026-06-25 13:46 UTCEPSS rescore
  40. 2026-06-25 13:46 UTCEPSS rescore
  41. 2026-06-24 14:02 UTCEPSS rescore
  42. 2026-06-24 14:02 UTCEPSS rescore
  43. 2026-06-23 21:29 UTCEPSS rescore
  44. 2026-06-23 21:29 UTCEPSS rescore
  45. 2026-06-22 14:22 UTCEPSS rescore
  46. 2026-06-21 14:53 UTCEPSS rescore
  47. 2026-06-21 01:56 UTCEPSS rescore
  48. 2026-06-21 01:56 UTCEPSS rescore
  49. 2026-06-19 19:35 UTCOSV refresh
  50. 2026-06-18 17:49 UTCEPSS rescore
  51. 2026-06-18 17:49 UTCEPSS rescore
  52. 2026-06-17 17:49 UTCEPSS rescore
  53. 2026-06-17 17:49 UTCEPSS rescore
  54. 2026-06-16 17:49 UTCEPSS rescore
  55. 2026-06-16 17:49 UTCEPSS rescore
  56. 2026-06-16 17:49 UTCEPSS rescore
  57. 2026-06-15 17:44 UTCEPSS rescore
  58. 2026-06-13 22:57 UTCEPSS rescore
  59. 2026-06-12 23:08 UTCEPSS rescore
  60. 2026-06-10 22:14 UTCEPSS rescore
  61. 2026-06-10 13:17 UTCEPSS rescore
  62. 2026-06-07 15:21 UTCEPSS rescore
  63. 2026-06-06 13:44 UTCEPSS rescore
  64. 2026-06-06 13:44 UTCEPSS rescore
  65. 2026-06-05 22:44 UTCEPSS rescore
  66. 2026-06-05 22:44 UTCEPSS rescore
  67. 2026-06-05 06:07 UTCEPSS rescore
  68. 2026-06-04 13:09 UTCEPSS rescore
  69. 2026-06-04 13:09 UTCEPSS rescore
  70. 2026-06-04 13:09 UTCEPSS rescore
  71. 2026-06-02 20:10 UTCEPSS rescore
  72. 2026-06-02 20:10 UTCEPSS rescore
  73. 2026-06-01 13:49 UTCEPSS rescore
  74. 2026-06-01 13:49 UTCEPSS rescore
  75. 2026-06-01 13:49 UTCEPSS rescore

Publicly available exploits

(1 reference)

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

  • Exploit-DBEDB-30724✓ verified
    First seen Oct 31, 2007

    Perdition 1.17 - IMAPD __STR_VWRITE Remote Format String

    Open source ↗

Related CVEs(same product + same CWE)

Same product

1 shown

Debian:11:perdition

Frequently asked(4)

What is CVE-2007-5740?
CVE-2007-5740 is a high vulnerability published on October 31, 2007. The format string protection mechanism in IMAPD for Perdition Mail Retrieval Proxy 1.17 and earlier allows remote attackers to execute arbitrary code via an IMAP tag with a null byte followed by a format string specifier, which is not counted by the mechanism.
When was CVE-2007-5740 disclosed?
CVE-2007-5740 was first published on October 31, 2007, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2007-5740 actively exploited?
CVE-2007-5740 is not currently on CISA's Known Exploited Vulnerabilities catalog. EchelonGraph's EG-KEV model classifies it as weaponized: a functional public exploit exists. FIRST EPSS estimates a 12% probability of exploitation in the next 30 days (96th percentile of EPSS-scored CVEs).
How do I remediate CVE-2007-5740?
A fix for CVE-2007-5740 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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