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CVE-2018-7054

31
FAUCET Score

CVE-2018-7054 is a critical use-after-free vulnerability affecting Irssi versions prior to 1.0.7 and 1.1.1, specifically when a server disconnects during netsplits. This flaw, an incomplete fix for CVE-2017-7191, impacts various distributions of Irssi on Canonical and Debian Linux. With a CVSS score of 9.8 (Critical), it presents an easily exploitable network attack (AV:N/AC:L) that could lead to complete compromise of confidentiality, integrity, and availability (C:H/I:H/A:H). Despite its 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
< 1.0.7CPE matchmatch criteria
cpe:2.3:a:irssi:irssi:*:*:*:*:*:*:*:*
1.1.0CPE matchmatch criteria
cpe:2.3:a:irssi:irssi:1.1.0:*:*:*:*:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
17.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*

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
2.38%
Probability of exploitation in next 30 days
EPSS Percentile
82.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0238 is in the 72nd percentile among its peer group of 36,897 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 Advisories (1)

redhatCVE-2018-7054Low

irssi: use-after-free when a server is disconnected during netsplits

Feb 15, 2018

References

openwall.com / lists/oss-security/2018/02/15/1
Mailing List
irssi.org / security/irssi_sa_2018_02.txt
MitigationVendor Advisory
usn.ubuntu.com / 3590-1
Third Party Advisory
usn.ubuntu.com / 4046-1
debian.org / security/2018/dsa-4162
Third Party Advisory