CVE-2022-27943: fedoraproject fedora Uncontrolled Recursion
CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2022-27943DEBIAN-CVE-2022-27943
Published 26-03-2022Last modified 14-10-2026
Vulnerability summary
CVE-2022-27943 is a medium (CVSS 5.5) Uncontrolled Recursion vulnerability in fedoraproject fedora. EPSS estimates a 0.95% chance of exploitation in the next 30 days, higher than 60.6% of scored vulnerabilities. 2 public exploits are recorded.
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)EPSS score
0.95%
0%100%
Low · +0.05 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2reference
Advisory lineage
Upstream 0 · Downstream 3 · Related 3Timeline
- 26-03-2022PublishedVulnerability first disclosed.
- 14-10-2026Last modifiedVulnerability information updated.
Description
libiberty/rust-demangle.c in GNU GCC 11.2 allows stack consumption in demangle_const, as demonstrated by nm-new.
CVSS metrics
5 scores · 4 sources · 2 versionsMedium 5.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
0.95%
Chance of exploitation in the next 30 days
Percentile
61%
Versus all other CVEs
30-day change
+0.05 pp
From 0.91% on 19-09-2026
19-09-202619-10-2026
EPSS score0.95%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundExploit Reference (sourceware.org)
Maturity: unknown
Exploit Reference (gcc.gnu.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Ubuntu26 products
- binutilsAll versions (No fix recorded)
- gcc-11All versions (No fix recorded)
- gcc-12All versions (No fix recorded)
- gcc-3.3All versions (No fix recorded)
- gcc-4.7All versions (No fix recorded)
Debian1 product
- gcc-12All versions (No fix recorded)
Fedoraproject1 product
- fedoraEOL36
Gnu1 product
- gcc11.2
4 vendors · 29 products
References
11 links- lists.fedoraproject.org/archives/…Vendor Advisory
