CVE-2005-0199

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-01. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Weaponized
9.8EG
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: 19%CVSS: 9.8Exploit: Exploit-DB (verified) · epss top5pct · public exploitExposed: 0

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

Integer underflow in the Lists_MakeMask() function in lists.c in ngIRCd before 0.8.2 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a long MODE line that causes an incorrect length calculation, which leads to a buffer overflow.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Track*)
EG Risk 75/100SSVC: 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
Severity98% × 45%
Exploitation65% × 40%
Automatability30% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
19%
EPSS %ILE
97%
KEV
Not listed

Published

May 2, 2005

Last Modified

June 16, 2026

Advisory Details (7)

Auto-updated Jul 26, 2026
No patch confirmed yet.
generic

79705 – net-irc/ngircd: Multiple vulnerabilities

http://bugs.gentoo.org/show_bug.cgi?id=79705
generic

IBM X-Force Exchange

https://exchange.xforce.ibmcloud.com/vulnerabilities/19143
generic
http://www.securityfocus.com/bid/12397
generic

ngIRCd: Buffer overflow (GLSA 200501-40) — Gentoo security

http://www.gentoo.org/security/en/glsa/glsa-200501-40.xml
generic
http://securitytracker.com/id?1013047
generic

About Secunia Research | Flexera

http://secunia.com/advisories/14059
generic

About Secunia Research | Flexera

http://secunia.com/advisories/14056

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 20× 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. 2026-07-25 14:11 UTCEPSS rescore
  2. 2026-07-24 14:11 UTCEPSS rescore
  3. 2026-07-23 00:47 UTCEG score recompute
  4. 2026-07-23 00:28 UTCEG score recompute
  5. 2026-07-22 23:51 UTCEG score recompute
  6. 2026-07-22 21:31 UTCEG score recompute
  7. 2026-07-18 09:59 UTCEPSS rescore
  8. 2026-07-18 09:59 UTCEPSS rescore
  9. 2026-07-15 16:53 UTCEPSS rescore
  10. 2026-07-15 01:55 UTCEPSS rescore
  11. 2026-07-15 01:55 UTCEPSS rescore
  12. 2026-07-13 22:24 UTCEPSS rescore
  13. 2026-07-13 06:07 UTCEPSS rescore
  14. 2026-07-13 06:07 UTCEPSS rescore
  15. 2026-07-11 08:22 UTCEPSS rescore
  16. 2026-07-11 08:22 UTCEPSS rescore
  17. 2026-07-08 15:09 UTCEPSS rescore
  18. 2026-07-02 14:00 UTCEPSS rescore
  19. 2026-07-01 15:01 UTCEPSS rescore
  20. 2026-06-28 04:52 UTCEPSS rescore
  21. 2026-06-27 03:04 UTCEPSS rescore
  22. 2026-06-25 13:46 UTCEPSS rescore
  23. 2026-06-24 14:01 UTCEPSS rescore
  24. 2026-06-23 21:29 UTCEPSS rescore
  25. 2026-06-22 14:22 UTCEPSS rescore
Show 54 more
  1. 2026-06-22 14:22 UTCEPSS rescore
  2. 2026-06-21 01:56 UTCEPSS rescore
  3. 2026-06-18 17:49 UTCEPSS rescore
  4. 2026-06-18 17:49 UTCEPSS rescore
  5. 2026-06-17 17:49 UTCEPSS rescore
  6. 2026-06-17 17:49 UTCEPSS rescore
  7. 2026-06-16 17:49 UTCEPSS rescore
  8. 2026-06-16 17:49 UTCEPSS rescore
  9. 2026-06-15 17:44 UTCEPSS rescore
  10. 2026-06-14 23:13 UTCEPSS rescore
  11. 2026-06-14 23:13 UTCEPSS rescore
  12. 2026-06-13 22:56 UTCEPSS rescore
  13. 2026-06-12 23:08 UTCEPSS rescore
  14. 2026-06-11 13:55 UTCEPSS rescore
  15. 2026-06-10 22:14 UTCEPSS rescore
  16. 2026-06-10 13:17 UTCEPSS rescore
  17. 2026-06-08 14:13 UTCEPSS rescore
  18. 2026-06-07 15:21 UTCEPSS rescore
  19. 2026-06-06 13:44 UTCEPSS rescore
  20. 2026-06-06 13:44 UTCEPSS rescore
  21. 2026-06-05 22:43 UTCEPSS rescore
  22. 2026-06-05 22:43 UTCEPSS rescore
  23. 2026-06-04 13:09 UTCEPSS rescore
  24. 2026-06-04 13:09 UTCEPSS rescore
  25. 2026-06-02 20:10 UTCEPSS rescore
  26. 2026-06-02 20:10 UTCEPSS rescore
  27. 2026-06-01 13:49 UTCEPSS rescore
  28. 2026-06-01 13:49 UTCEPSS rescore
  29. 2026-05-31 22:28 UTCEPSS rescore
  30. 2026-05-31 00:13 UTCEPSS rescore
  31. 2026-05-31 00:13 UTCEPSS rescore
  32. 2026-05-29 13:40 UTCEPSS rescore
  33. 2026-05-29 13:40 UTCEPSS rescore
  34. 2026-05-28 13:42 UTCEPSS rescore
  35. 2026-05-28 13:42 UTCEPSS rescore
  36. 2026-05-28 13:42 UTCEPSS rescore
  37. 2026-05-27 13:37 UTCEPSS rescore
  38. 2026-05-24 16:42 UTCEPSS rescore
  39. 2026-05-22 21:15 UTCEPSS rescore
  40. 2026-05-21 22:38 UTCEPSS rescore
  41. 2026-05-20 22:36 UTCEPSS rescore
  42. 2026-05-20 22:36 UTCEPSS rescore
  43. 2026-05-20 11:20 UTCEPSS rescore
  44. 2026-05-20 11:20 UTCEPSS rescore
  45. 2026-05-20 07:55 UTCGHSA enrichment
  46. 2026-05-20 03:39 UTCGHSA enrichment
  47. 2026-05-19 23:25 UTCGHSA enrichment
  48. 2026-05-19 19:12 UTCGHSA enrichment
  49. 2026-05-19 14:52 UTCGHSA enrichment
  50. 2026-05-19 10:34 UTCGHSA enrichment
  51. 2026-05-19 06:09 UTCGHSA enrichment
  52. 2026-05-19 01:58 UTCEG score recompute
  53. 2026-05-19 01:58 UTCGHSA enrichment
  54. 2026-05-18 21:29 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-25070✓ verified
    First seen Jan 28, 2005

    ngIRCd 0.6/0.7/0.8 - Remote Buffer Overflow

    Open source ↗

Frequently asked(5)

What is CVE-2005-0199?
CVE-2005-0199 is a critical vulnerability published on May 2, 2005. Integer underflow in the Lists_MakeMask() function in lists.c in ngIRCd before 0.8.2 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a long MODE line that causes an incorrect length calculation, which leads to a buffer overflow.
When was CVE-2005-0199 disclosed?
CVE-2005-0199 was first published in the National Vulnerability Database on May 2, 2005, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2005-0199 actively exploited?
CVE-2005-0199 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 19% probability of exploitation in the next 30 days, which ranks it in the top 3.0% of all scored CVEs.
What is the CVSS score of CVE-2005-0199?
CVE-2005-0199 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2005-0199?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2005-0199, 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.

Dependency Blast Radius

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