Is CVE-2017-12133 in the CISA KEV catalog?

No. CVE-2017-12133 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-12133?

CVE-2017-12133 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2017-12133?

CVE-2017-12133 has an EPSS score of 2.40% (82th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-12133?

Upgrade glibc on debian 11 to 2.24-15 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2017-12133

MEDIUMEPSS 82th pctl

5.9

CVSS v3

NVD

Description

Use-after-free vulnerability in the clntudp_call function in sunrpc/clnt_udp.c in the GNU C Library (aka glibc or libc6) before 2.26 allows remote attackers to have unspecified impact via vectors related to error path.

CWE-416Use After Free

How to fix

Remediation Available

glibcDebian

Fixed in:2.24-15CVE-2017-12133

glibcUbuntu

Fixed in:2.23-0ubuntu11.2USN-4416-1

Fixed in:2.27-3ubuntu1.2USN-4416-1

libc6Ubuntu

Fixed in:2.23-0ubuntu11.2USN-4416-1

Fixed in:2.27-3ubuntu1.2USN-4416-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Exploit Intelligence

2.40%probability of exploitation in 30 days

82ndpercentile

Elevated risk: more likely to be exploited than 82% of all known CVEs.

References

Third-Party Advisory1

sourceware.org

Other references4

Related Vulnerabilities

Other CWE-416 (Use After Free) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0708	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-31166	Critical	9.8	100%	KEV	Fix
CVE-2015-5119	Critical	9.8	99%	KEV	-
CVE-2010-3962	High	8.1	97%	KEV	-
CVE-2015-0313	Critical	9.8	96%	KEV	Fix
CVE-2017-9798	High	7.5	95%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.