SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2014-3609

HttpHdrRange.cc in Squid 3.x before 3.3.12 and 3.4.x before 3.4.6 allows remote attackers to cause a denial of service (crash) via a request with crafted "Range headers with unidentifiable byte-range values."

MEDIUM 5.0EPSS 56.2%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 56.2%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

Description

HttpHdrRange.cc in Squid 3.x before 3.3.12 and 3.4.x before 3.4.6 allows remote attackers to cause a denial of service (crash) via a request with crafted "Range headers with unidentifiable byte-range values."

CVSS 2.0
5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS
56.22% probability · 99th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-20
Affected
squid-cache/squid
Source
secalert@redhat.com
EPSS trend
0%30%60%4 November 2026: 56.22%4 November 20264 November 2026

EPSS 56.2% since 4 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.