Is CVE-2017-12132 in the CISA KEV catalog?

No. CVE-2017-12132 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-12132?

CVE-2017-12132 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2017-12132?

CVE-2017-12132 has an EPSS score of 1.90% (77th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-12132?

Upgrade glibc on debian 11 to 2.25-1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2017-12132

MEDIUMEPSS 77th pctl

5.9

CVSS v3

NVD

Description

The DNS stub resolver in the GNU C Library (aka glibc or libc6) before version 2.26, when EDNS support is enabled, will solicit large UDP responses from name servers, potentially simplifying off-path DNS spoofing attacks due to IP fragmentation.

CWE-770Allocation of Resources Without Limits or Throttling

How to fix

Remediation Available

glibcDebian

Fixed in:2.25-1CVE-2017-12132

glibcUbuntu

Fixed in:2.23-0ubuntu11.3+esm3USN-5768-1

libc6Ubuntu

Fixed in:2.23-0ubuntu11.3+esm3USN-5768-1

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

1.90%probability of exploitation in 30 days

77thpercentile

Elevated risk: more likely to be exploited than 77% of all known CVEs.

References

Patch1

sourceware.org

Third-Party Advisory1

arxiv.org

Other references2

Related Vulnerabilities

Other CWE-770 (Allocation of Resources Without Limits or Throttling) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-50387	High	7.5	100%	-	Fix
CVE-2019-11478	Medium	5.3	95%	-	Fix
CVE-2019-11479	High	7.5	92%	-	Fix
CVE-2024-27316	High	7.5	91%	-	Fix
CVE-2022-30522	High	7.5	90%	-	Fix
CVE-2019-9515	High	7.5	88%	-	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.