CVE-2009-1255

NONECVSS 0.0
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 2%CVSS: —Exploit: NoneExposed: 0

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

The process_stat function in (1) Memcached before 1.2.8 and (2) MemcacheDB 1.2.0 discloses (a) the contents of /proc/self/maps in response to a stats maps command and (b) memory-allocation statistics in response to a stats malloc command, which allows remote attackers to obtain sensitive information such as the locations of memory regions, and defeat ASLR protection, by sending a command to the daemon's TCP port.

CVSS v3
—
EG Score
0.0(none)
EPSS
80.8%
KEV
Not listed

Published

April 30, 2009

Last Modified

April 23, 2026

References (38)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 40× 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.

  1. 2026-07-07 18:41 UTCOSV refresh
  2. 2026-07-06 16:23 UTCEPSS rescore
  3. 2026-07-05 02:26 UTCEPSS rescore
  4. 2026-07-05 02:26 UTCEPSS rescore
  5. 2026-07-04 06:27 UTCEPSS rescore
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  7. 2026-06-30 23:19 UTCEPSS rescore
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  10. 2026-06-28 14:03 UTCEPSS rescore
  11. 2026-06-28 04:52 UTCEPSS rescore
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  13. 2026-06-27 03:05 UTCEPSS rescore
  14. 2026-06-25 13:46 UTCEPSS rescore
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  16. 2026-06-24 14:02 UTCEPSS rescore
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  18. 2026-06-23 21:29 UTCEPSS rescore
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  20. 2026-06-21 14:53 UTCEPSS rescore
  21. 2026-06-21 01:56 UTCEPSS rescore
  22. 2026-06-21 01:56 UTCEPSS rescore
  23. 2026-06-19 19:22 UTCEPSS rescore
  24. 2026-06-19 19:22 UTCEPSS rescore
  25. 2026-06-19 05:55 UTCOSV refresh
Show 54 more
  1. 2026-06-18 17:49 UTCEPSS rescore
  2. 2026-06-18 17:49 UTCEPSS rescore
  3. 2026-06-17 17:49 UTCEPSS rescore
  4. 2026-06-17 17:49 UTCEPSS rescore
  5. 2026-06-16 17:49 UTCEPSS rescore
  6. 2026-06-16 17:49 UTCEPSS rescore
  7. 2026-06-15 17:44 UTCEPSS rescore
  8. 2026-06-14 23:14 UTCEPSS rescore
  9. 2026-06-14 23:14 UTCEPSS rescore
  10. 2026-06-13 22:57 UTCEPSS rescore
  11. 2026-06-12 23:08 UTCEPSS rescore
  12. 2026-06-12 23:08 UTCEPSS rescore
  13. 2026-06-10 22:14 UTCEPSS rescore
  14. 2026-06-10 13:17 UTCEPSS rescore
  15. 2026-06-08 14:13 UTCEPSS rescore
  16. 2026-06-07 15:22 UTCEPSS rescore
  17. 2026-06-07 15:22 UTCEPSS rescore
  18. 2026-06-06 13:44 UTCEPSS rescore
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  20. 2026-06-06 13:44 UTCEPSS rescore
  21. 2026-06-05 22:44 UTCEPSS rescore
  22. 2026-06-05 22:44 UTCEPSS rescore
  23. 2026-06-05 06:07 UTCEPSS rescore
  24. 2026-06-04 13:09 UTCEPSS rescore
  25. 2026-06-04 13:09 UTCEPSS rescore
  26. 2026-06-02 20:10 UTCEPSS rescore
  27. 2026-06-02 20:10 UTCEPSS rescore
  28. 2026-06-01 13:49 UTCEPSS rescore
  29. 2026-06-01 13:49 UTCEPSS rescore
  30. 2026-05-31 22:28 UTCEPSS rescore
  31. 2026-05-31 22:28 UTCEPSS rescore
  32. 2026-05-31 00:13 UTCEPSS rescore
  33. 2026-05-31 00:13 UTCEPSS rescore
  34. 2026-05-30 17:01 UTCEG score recompute
  35. 2026-05-30 17:01 UTCGHSA enrichment
  36. 2026-05-29 13:40 UTCEPSS rescore
  37. 2026-05-28 13:42 UTCEPSS rescore
  38. 2026-05-28 13:42 UTCEPSS rescore
  39. 2026-05-28 13:42 UTCEPSS rescore
  40. 2026-05-27 13:38 UTCEPSS rescore
  41. 2026-05-27 13:38 UTCEPSS rescore
  42. 2026-05-26 13:41 UTCEPSS rescore
  43. 2026-05-26 13:41 UTCEPSS rescore
  44. 2026-05-26 07:16 UTCEPSS rescore
  45. 2026-05-26 07:16 UTCEPSS rescore
  46. 2026-05-25 05:07 UTCOSV refresh
  47. 2026-05-24 16:43 UTCEPSS rescore
  48. 2026-05-22 21:15 UTCEPSS rescore
  49. 2026-05-22 21:15 UTCEPSS rescore
  50. 2026-05-20 22:37 UTCEPSS rescore
  51. 2026-05-20 22:37 UTCEPSS rescore
  52. 2026-05-20 11:21 UTCEPSS rescore
  53. 2026-05-20 11:20 UTCEPSS rescore
  54. 2026-05-18 21:29 UTCEPSS rescore

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Frequently asked(4)

What is CVE-2009-1255?
CVE-2009-1255 is a none vulnerability published on April 30, 2009. The process_stat function in (1) Memcached before 1.2.8 and (2) MemcacheDB 1.2.0 discloses (a) the contents of /proc/self/maps in response to a stats maps command and (b) memory-allocation statistics in response to a stats malloc command, which allows remote attackers to obtain sensitive…
When was CVE-2009-1255 disclosed?
CVE-2009-1255 was first published in the National Vulnerability Database on April 30, 2009, 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-2009-1255 actively exploited?
CVE-2009-1255 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 80.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2009-1255?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2009-1255, 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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