SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2013-1667

The rehash mechanism in Perl 5.8.2 through 5.16.x allows context-dependent attackers to cause a denial of service (memory consumption and crash) via a crafted hash key.

HIGH 7.5EPSS 3.58%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (3.58%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

The rehash mechanism in Perl 5.8.2 through 5.16.x allows context-dependent attackers to cause a denial of service (memory consumption and crash) via a crafted hash key.

CVSS 2.0
7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS
3.58% probability · 89th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-399
Affected
perl/perl
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 3.58%26 October 202626 October 2026

EPSS 3.6% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

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