4.3

CVE-2015-3185: apache http_server

Modified
AliasesUBUNTU-CVE-2015-3185DEBIAN-CVE-2015-3185
Published 20-07-2015Last modified 06-08-2024

Vulnerability summary

CVE-2015-3185 is a medium (CVSS 4.3) vulnerability in apache http_server. EPSS estimates a 16.23% chance of exploitation in the next 30 days, higher than 96.9% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 4.3, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
4.3/10
010
Medium · v2.0 (NVD)
EPSS score
16.23%
0%100%
Medium · -0.11 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 8 · Related 2
DSA-3325-1MGASA-2015-0281RHSA-2015:1666RHSA-2015:1667RHSA-2017:2709RHSA-2017:2710

Timeline

  1. 20-07-2015
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

The ap_some_auth_required function in server/request.c in the Apache HTTP Server 2.4.x before 2.4.14 does not consider that a Require directive may be associated with an authorization setting rather than an authentication setting, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances by leveraging the presence of a module that relies on the 2.2 API behavior.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

16.23%

Chance of exploitation in the next 30 days

Percentile

97%

Versus all other CVEs

30-day change

Decrease -0.11 pp

From 16.35% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.

Apple3 products
Apache1 product
  • http_server2.4.0 | 2.4.1 | 2.4.2 | 2.4.3 | 2.4.4 | 2.4.6 | 2.4.7 | 2.4.8 | 2.4.9 | 2.4.10 | 2.4.12 | 2.4.13
Canonical1 product
Debian1 product
  • apache2< 2.4.16-1
Ubuntu1 product
  • apache2< 2.4.7-1ubuntu4.5

5 vendors · 7 products

References

42 links
Show all 42 references