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CVE-2022-27007

32
FAUCET Score

CVE-2022-27007 is a critical use-after-free vulnerability affecting NGINX NJS version 0.7.2, specifically within the njs_function_frame_alloc() function when invoking from a restored frame. This flaw allows for remote, unauthenticated attackers to achieve high impact on confidentiality, integrity, and availability, as indicated by its CVSS score of 9.8. While there is no evidence of active exploitation, nor publicly available exploit code in Metasploit or ExploitDB, the vulnerability has garnered significant community discussion, with 10 mentions.

Impacted Technologies

VendorProductVersion(s)CPE
0.7.2CPE matchmatch criteria
cpe:2.3:a:f5:njs:0.7.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/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
3.1

Exploit Intelligence

EPSS Score
1.59%
Probability of exploitation in next 30 days
EPSS Percentile
73.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0159 is in the 60th 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

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / nginx/njs/commit/ad48705bf1f04b4221a5f5b07715ac48b3160d53
PatchThird Party Advisory
github.com / nginx/njs/issues/469
ExploitIssue TrackingPatchThird Party Advisory
security.netapp.com / advisory/ntap-20220519-0008
Third Party Advisory