The apache-auth.conf, apache-nohome.conf, apache-noscript.conf, and apache-overflows.conf files in Fail2ban before 0.8.10 do not properly validate log messages, which allows remote attackers to block arbitrary IP addresses via certain messages in a request.
CVE-2013-2178
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 5.0 — v2 rates that MEDIUM (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:N/I:N/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 1.8% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v2.0 (legacy)
- 5.0MEDIUMNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 5.0MEDIUMlow confidence
- EG Risk
- 28EG Risk 28/100CISA 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 computedSeverity50% × 45%Exploitation2% × 40%Automatability30% × 15%CISA SSVC: Track at low or medium mission impact; Track or Track* or Attend at high (mission-essential systems).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
- 1.8%
- EPSS %ILE
- 77th
- KEV
- Not listed
CISA SSVCTrack at low or medium mission impact; Track or Track* or Attend at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · 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
August 28, 2013
Last Modified
April 29, 2026
References (12)
- secalert@redhathttp://lists.opensuse.org/opensuse-updates/2014-03/msg00021.html
- secalert@redhathttp://www.debian.org/security/2013/dsa-2708
- secalert@redhathttp://www.openwall.com/lists/oss-security/2013/06/13/7
- secalert@redhathttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17338
- secalert@redhathttps://raw.github.com/fail2ban/fail2ban/master/ChangeLog
- secalert@redhathttps://vndh.net/note:fail2ban-089-denial-service
- af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-updates/2014-03/msg00021.html
- af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2013/dsa-2708
- af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2013/06/13/7
- af854a3a-2127-422b-91ae-364da2661108https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17338
- af854a3a-2127-422b-91ae-364da2661108https://raw.github.com/fail2ban/fail2ban/master/ChangeLog
- af854a3a-2127-422b-91ae-364da2661108https://vndh.net/note:fail2ban-089-denial-service
Affected Packages
(6 across 6 ecosystems)
Debian:11(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| fail2ban | — |
| — |
Debian:12(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| fail2ban | — |
| — |
Debian:13(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| fail2ban | — |
| — |
Debian:14(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| fail2ban | — |
| — |
Debian:6.0(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| fail2ban | 0.8.4-3, 0.8.4-3+squeeze1 |
| — |
Debian:7(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| fail2ban | 0.8.6-3wheezy1 |
| — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 4× in last 7d / 15× 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 143 total refreshes for this CVE.
- 2026-10-05 17:38 UTCEPSS rescore
- 2026-09-30 14:58 UTCEPSS rescore
- 2026-09-30 05:28 UTCOSV refresh
- 2026-09-29 20:15 UTCEG score recompute
- 2026-09-27 13:39 UTCEPSS rescore
- 2026-09-26 15:52 UTCEPSS rescore
- 2026-09-24 13:57 UTCEPSS rescore
- 2026-09-20 20:08 UTCEPSS rescore
- 2026-09-18 19:21 UTCEPSS rescore
- 2026-09-15 03:04 UTCEPSS rescore
- 2026-09-12 14:55 UTCEPSS rescore
- 2026-09-11 09:30 UTCEPSS rescore
- 2026-09-11 09:23 UTCOSV refresh
- 2026-09-07 15:56 UTCEPSS rescore
- 2026-09-06 13:42 UTCEPSS rescore
- 2026-09-05 15:22 UTCEPSS rescore
- 2026-09-04 13:55 UTCEPSS rescore
- 2026-09-02 14:06 UTCEPSS rescore
- 2026-09-01 13:47 UTCEPSS rescore
- 2026-08-27 14:20 UTCEPSS rescore
- 2026-08-26 14:40 UTCEPSS rescore
- 2026-08-25 13:43 UTCEPSS rescore
- 2026-08-24 07:23 UTCEPSS rescore
- 2026-08-23 17:52 UTCOSV refresh
- 2026-08-21 23:44 UTCEPSS rescore
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- 2026-08-20 22:50 UTCEPSS rescore
- 2026-08-19 16:59 UTCEPSS rescore
- 2026-08-18 13:42 UTCEPSS rescore
- 2026-08-16 02:09 UTCEPSS rescore
- 2026-08-15 01:25 UTCEPSS rescore
- 2026-08-12 13:45 UTCEPSS rescore
- 2026-08-08 16:31 UTCEPSS rescore
- 2026-08-07 18:26 UTCOSV refresh
- 2026-08-07 16:21 UTCEPSS rescore
- 2026-08-06 13:42 UTCEPSS rescore
- 2026-08-05 19:12 UTCEPSS rescore
- 2026-08-04 15:04 UTCEPSS rescore
- 2026-08-02 02:22 UTCEPSS rescore
- 2026-07-30 01:26 UTCEPSS rescore
- 2026-07-28 15:31 UTCEPSS rescore
- 2026-07-26 13:47 UTCEG score recompute▲ 5.00
- 2026-07-25 14:12 UTCEPSS rescore
- 2026-07-23 14:14 UTCEPSS rescore
- 2026-07-23 01:09 UTCEG score recompute
- 2026-07-23 00:13 UTCEG score recompute
- 2026-07-22 21:51 UTCEG score recompute
- 2026-07-22 14:04 UTCEPSS rescore
- 2026-07-22 14:04 UTCEPSS rescore
- 2026-07-22 11:18 UTCOSV refresh
- 2026-07-21 15:21 UTCEPSS rescore
- 2026-07-20 17:03 UTCEPSS rescore
- 2026-07-20 17:03 UTCEPSS rescore
- 2026-07-19 14:27 UTCEPSS rescore
- 2026-07-19 14:27 UTCEPSS rescore
- 2026-07-19 02:25 UTCEPSS rescore
- 2026-07-19 02:25 UTCEPSS rescore
- 2026-07-18 10:00 UTCEPSS rescore
- 2026-07-16 16:58 UTCEPSS rescore
- 2026-07-15 16:54 UTCEPSS rescore
- 2026-07-15 16:54 UTCEPSS rescore
- 2026-07-15 01:56 UTCEPSS rescore
- 2026-07-13 22:26 UTCEPSS rescore
- 2026-07-13 06:08 UTCEPSS rescore
- 2026-07-11 08:23 UTCEPSS rescore
- 2026-07-09 19:05 UTCEPSS rescore
- 2026-07-08 15:10 UTCEPSS rescore
- 2026-07-06 02:19 UTCEPSS rescore
- 2026-07-06 02:19 UTCEPSS rescore
- 2026-07-05 06:21 UTCOSV refresh
- 2026-07-05 02:26 UTCEPSS rescore
- 2026-07-04 06:27 UTCEPSS rescore
- 2026-07-01 15:02 UTCEPSS rescore
- 2026-06-30 23:19 UTCEPSS rescore
- 2026-06-30 23:19 UTCEPSS rescore
- 2026-06-29 14:02 UTCEPSS rescore
- 2026-06-28 14:03 UTCEPSS rescore
- 2026-06-28 04:53 UTCEPSS rescore
- 2026-06-28 04:53 UTCEPSS rescore
- 2026-06-27 03:05 UTCEPSS rescore
- 2026-06-25 13:46 UTCEPSS rescore
- 2026-06-24 14:02 UTCEPSS rescore
- 2026-06-24 14:02 UTCEPSS rescore
- 2026-06-23 21:30 UTCEPSS rescore
- 2026-06-22 14:22 UTCEPSS rescore
- 2026-06-22 14:22 UTCEPSS rescore
- 2026-06-21 14:53 UTCEPSS rescore
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-21 01:56 UTCEPSS rescore
- 2026-06-19 19:23 UTCEPSS rescore
- 2026-06-19 19:22 UTCEPSS rescore
- 2026-06-18 17:49 UTCEPSS rescore
- 2026-06-18 17:49 UTCEPSS rescore
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-16 17:49 UTCEPSS rescore
- 2026-06-16 17:49 UTCEPSS rescore
- 2026-06-16 17:43 UTCOSV refresh
- 2026-06-15 17:44 UTCEPSS rescore
- 2026-06-14 23:14 UTCEPSS rescore
- 2026-06-13 22:57 UTCEPSS rescore
Related CVEs(same product + same CWE)
Same product
7 shownDebian:6.0:fail2ban · Debian:11:fail2ban
Frequently asked(4)
What is CVE-2013-2178?
When was CVE-2013-2178 disclosed?
Is CVE-2013-2178 actively exploited?
How do I remediate CVE-2013-2178?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2013-2178
Is Your Infrastructure Affected by CVE-2013-2178?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.