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CVE-2022-23219

33
FAUCET Score

CVE-2022-23219 is a critical buffer overflow vulnerability in the deprecated clnt_create function within the GNU C Library (glibc) sunrpc module, affecting versions through 2.34, including Debian and Oracle products. This flaw allows an unauthenticated attacker to cause a denial of service or potentially achieve arbitrary code execution by providing an overly long hostname argument. While rated with a CVSS score of 9.8 (Critical), there is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.31CPE matchmatch criteria
cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
22.1.3CPE matchmatch criteria
cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.1.3:*:*:*:*:*:*:*
22.1.0CPE matchmatch criteria
cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:22.1.0:*:*:*:*:*:*:*
22.1.2CPE matchmatch criteria
cpe:2.3:a:oracle:communications_cloud_native_core_network_repository_function:22.1.2:*:*:*:*:*:*:*
22.2.0CPE matchmatch criteria
cpe:2.3:a:oracle:communications_cloud_native_core_network_repository_function:22.2.0:*:*:*:*:*:*:*

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
4.21%
Probability of exploitation in next 30 days
EPSS Percentile
89.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0421 is in the 83rd 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 (10)

microsoftpatch availablevia msrc
Product: cbl2 glibc 2.35-1 on CBL Mariner 2.0Fixed in: 2.35-1
microsoftpatch availablevia msrc
Product: 18810-16823Fixed in: 2.35-1
oraclepatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: glibc-0:2.28-164.el8_5.3
View patch
cephvendor investigatingvia llm_extracted
d-linkvendor investigatingvia llm_extracted
humansignalvendor investigatingvia llm_extracted
hyperledgervendor investigatingvia llm_extracted
m2teamvendor investigatingvia llm_extracted
roundcubevendor investigatingvia llm_extracted

Vendor Advisories (8)

m2teamllm-m2team-41bf9cb22f24a510CRITICAL

Multiple ctrlX CORE vulnerabilities

Apr 20, 2022
humansignalllm-humansignal-a731b4173ec8e579CRITICAL

Multiple ctrlX CORE vulnerabilities

Apr 20, 2022
d-linkllm-d-link-1b06970e59fff350CRITICAL

Multiple ctrlX CORE vulnerabilities

Apr 20, 2022
hyperledgerllm-hyperledger-3131efc9fc3bed9eCRITICAL

Multiple ctrlX CORE vulnerabilities

Apr 20, 2022
roundcubellm-roundcube-8900788926ebda25CRITICAL

Multiple ctrlX CORE vulnerabilities

Apr 20, 2022
cephllm-ceph-757e29f49fd4489eCRITICAL

Multiple ctrlX CORE vulnerabilities

Apr 20, 2022
microsoft2022-Jan/CVE-2022-23219Critical

The deprecated compatibility function clnt_create in the sunrpc module of the GNU C Library (aka glibc) through 2.34 copies its hostname argument on the stack without validating its length which may result in a buffer overflow potentially resulting in a denial of service or (if an application is not built with a stack protector enabled) arbitrary code execution.

Jan 11, 2022
redhatCVE-2022-23219Moderate

glibc: Stack-based buffer overflow in sunrpc clnt_create via a long pathname

Dec 3, 2017

References

lists.debian.org / debian-lts-announce/2022/10/msg00021.html
Mailing ListThird Party Advisory
security.gentoo.org / glsa/202208-24
Third Party Advisory
sourceware.org / bugzilla/show_bug.cgi
ExploitIssue TrackingThird Party Advisory
oracle.com / security-alerts/cpujul2022.html
PatchThird Party Advisory