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CVE-2018-6913

36
FAUCET Score

CVE-2018-6913 is a critical heap-based buffer overflow vulnerability in the pack function of Perl versions prior to 5.26.2, affecting various distributions including Canonical, Debian, and Perl itself. With a CVSS score of 9.8, it allows unauthenticated attackers to execute arbitrary code with low attack complexity and no user interaction, leading to complete compromise of confidentiality, integrity, and availability. Despite its high severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
< 5.26.2CPE matchmatch criteria
cpe:2.3:a:perl:perl:*:*:*:*:*:*:*:*
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
10.87%
Probability of exploitation in next 30 days
EPSS Percentile
95.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.1087 is in the 91st percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (2)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: perl
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: perl

Vendor Advisories (1)

redhatCVE-2018-6913Low

perl: heap buffer overflow in pp_pack.c

Apr 14, 2018

References

lists.debian.org / debian-lts-announce/2018/04/msg00009.html
Mailing ListThird Party Advisory
rt.perl.org / Public/Bug/Display.html
Vendor Advisory
security.gentoo.org / glsa/201909-01
usn.ubuntu.com / 3625-1
Third Party Advisory
usn.ubuntu.com / 3625-2
Third Party Advisory
debian.org / security/2018/dsa-4172
Third Party Advisory
oracle.com / security-alerts/cpujul2020.html
securityfocus.com / bid/103953
Third Party AdvisoryVDB Entry
securitytracker.com / id/1040681
Third Party AdvisoryVDB Entry