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CVE-2022-25891

25
FAUCET Score

CVE-2022-25891 is a Denial of Service (DoS) vulnerability affecting containrrr/shoutrrr versions prior to 0.6.0, specifically within the util.PartitionMessage function. This vulnerability can be triggered by sending messages of precisely 2000, 4000, or 6000 characters. With a CVSS score of 7.5 (High), it is easily exploitable over the network with low attack complexity, leading to a high impact on availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.6.0CPE matchmatch criteria
cpe:2.3:a:containrrr:shoutrrr:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/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
3.1

Exploit Intelligence

EPSS Score
1.53%
Probability of exploitation in next 30 days
EPSS Percentile
72.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0153 is in the 54th percentile among its peer group of 51,551 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

Patch Available

Vendor Patches (6)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/containrrr/shoutrrrFixed in: 0.6.0
microsoftpatch availablevia msrc
Product: 18624-16823Fixed in: 1.13.2-1
microsoftpatch availablevia msrc
Product: cbl2 kured 1.13.2-1 on CBL Mariner 2.0Fixed in: 1.13.2-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 1.13.2-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 1.13.2-1

Vendor Advisories (3)

microsoft2023-Nov/CVE-2022-25891

CVE-2022-25891

Nov 14, 2023
goGHSA-477v-w82m-634jhigh

Shoutrrr util package DoS via sending 2000, 4000, or 6000 character messages

Jul 16, 2022
microsoft2022-Jul/CVE-2022-25891Important

Denial of Service (DoS)

Jul 12, 2022

References

github.com / containrrr/shoutrrr/commit/6a27056f9d7522a8b493216195cb7634bf4b5c42
PatchThird Party Advisory
github.com / containrrr/shoutrrr/issues/240
ExploitIssue TrackingPatchThird Party Advisory
github.com / containrrr/shoutrrr/pull/242
PatchThird Party Advisory
github.com / containrrr/shoutrrr/releases/tag/v0.6.0
Release NotesThird Party Advisory
snyk.io / vuln/SNYK-GOLANG-GITHUBCOMCONTAINRRRSHOUTRRRPKGUTIL-2849059
PatchThird Party Advisory