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CVE-2022-26499

33
FAUCET Score

CVE-2022-26499 describes a Critical Server-Side Request Forgery (SSRF) vulnerability in Asterisk versions through 19.x, including Debian and Digium distributions. This flaw allows an attacker to send arbitrary requests to internal interfaces, such as localhost, by manipulating the Identity header during STIR/SHAKEN usage. With a CVSS score of 9.1, this vulnerability poses a significant risk due to its network-based attack vector, low complexity, and potential for high impact on confidentiality and integrity. While no public exploit code or active exploitation has been observed, and community discussion is minimal, organizations using affected Asterisk versions should prioritize patching to versions 16.25.2, 18.11.2, or 19.3.2.

Impacted Technologies

VendorProductVersion(s)CPE
>= 16.15.0, <= 16.25.1CPE matchmatch criteria
cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
>= 18.0, < 18.11.2CPE matchmatch criteria
cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
>= 19.0.0, <= 19.3.1CPE matchmatch criteria
cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
11.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
7.68%
Probability of exploitation in next 30 days
EPSS Percentile
94.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0768 is in the 89th 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

Patch Available

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/166745/Asterisk-Project-Security-Advisory-AST-2022-002.html
PatchThird Party AdvisoryVDB Entry
downloads.asterisk.org / pub/security
Vendor Advisory
downloads.asterisk.org / pub/security/AST-2022-002.html
PatchVendor Advisory
lists.debian.org / debian-lts-announce/2022/11/msg00021.html
Issue TrackingThird Party Advisory
debian.org / security/2022/dsa-5285
Third Party Advisory