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CVE-2016-7045

22
FAUCET Score

CVE-2016-7045 is a heap corruption vulnerability in Irssi before version 0.8.20, affecting Irssi and various Canonical and Debian Linux distributions. An unauthenticated remote attacker can exploit a flaw in the format_send_to_gui function by manipulating string lengths, leading to a denial of service. With a CVSS v3 score of 7.5 (HIGH), this vulnerability is easily exploitable over the network with low attack complexity, resulting in high availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage for this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.8.19CPE matchmatch criteria
cpe:2.3:a:irssi:irssi:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
4.71%
Probability of exploitation in next 30 days
EPSS Percentile
90.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0471 is in the 84th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2016-7045Moderate

irssi: String length not validated in format_send_to_gui() causing crash

Sep 21, 2016

References

irssi.org / security/irssi_sa_2016.txt
ExploitPatchVendor Advisory
debian.org / security/2016/dsa-3672
Third Party Advisory
securitytracker.com / id/1036868
ubuntu.com / usn/USN-3086-1
Third Party Advisory