4.3

CVE-2012-4558: apache http_server

Modified
AliasesDEBIAN-CVE-2012-4558
Published 26-02-2013Last modified 06-08-2024

Vulnerability summary

CVE-2012-4558 is a medium (CVSS 4.3) vulnerability in apache http_server. EPSS estimates a 22.91% chance of exploitation in the next 30 days, higher than 97.7% 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
22.91%
0%100%
High · 0.00 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 6
DSA-2637-1RHSA-2013:0815RHSA-2013:1011RHSA-2013:1012RHSA-2013:1207RHSA-2013:1208

Timeline

  1. 26-02-2013
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

Multiple cross-site scripting (XSS) vulnerabilities in the balancer_handler function in the manager interface in mod_proxy_balancer.c in the mod_proxy_balancer module in the Apache HTTP Server 2.2.x before 2.2.24-dev and 2.4.x before 2.4.4 allow remote attackers to inject arbitrary web script or HTML via a crafted string.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

22.91%

Chance of exploitation in the next 30 days

Percentile

98%

Versus all other CVEs

30-day change

No change 0.00 pp

From 22.91% 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.

Apache1 product
  • http_serverEOL2.2 | 2.2.0 | 2.2.1 | 2.2.2 | 2.2.3 | 2.2.4 | 2.2.6 | 2.2.8 | 2.2.9 | 2.2.10 | 2.2.11 | 2.2.12 | 2.2.13 | 2.2.14 | 2.2.15 | 2.2.16 | 2.2.17 | 2.2.18 | 2.2.19 | 2.2.20 | 2.2.21 | 2.2.22 | 2.2.23 | 2.4.0 | 2.4.1 | 2.4.2 | 2.4.3
Debian1 product
  • apache2< 2.2.22-13

2 vendors · 2 products

References

37 links
Show all 37 references