5.9

CVE-2016-2390: squid-cache squid Improper Input Validation

CVSS: 5.9v3.0MediumModified
AliasesDEBIAN-CVE-2016-2390
Published 19-04-2016Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2016-2390 is a medium (CVSS 5.9) Improper Input Validation vulnerability in squid-cache squid. EPSS estimates a 25.55% chance of exploitation in the next 30 days, higher than 97.9% of scored vulnerabilities.

Overall risk
29/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.9/10
010
Medium · v3.0 (NVD)
EPSS score
25.55%
0%100%
High · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
SUSE-SU-2016:2089-1

Timeline

  1. 19-04-2016
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

The FwdState::connectedToPeer method in FwdState.cc in Squid before 3.5.14 and 4.0.x before 4.0.6 does not properly handle SSL handshake errors when built with the --with-openssl option, which allows remote attackers to cause a denial of service (application crash) via a plaintext HTTP message.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

25.55%

Chance of exploitation in the next 30 days

Percentile

98%

Versus all other CVEs

30-day change

0.00 pp

From 25.55% on 19-09-2026

19-09-202619-10-2026
EPSS score
25.55%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • squid< 4.1-1
Squid-cache1 product
  • squidEOL≤ 3.5.13 | 4.0.4 | 4.0.5

2 vendors · 2 products

References

8 links