Is CVE-2017-5337 in the CISA KEV catalog?

No. CVE-2017-5337 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-5337?

CVE-2017-5337 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2017-5337?

CVE-2017-5337 has an EPSS score of 6.18% (93th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-5337?

Upgrade gnutls28 on debian 11 to 3.5.8-1 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2017-5337

CRITICALEPSS 93th pctl

9.8

CVSS v3

NVD

Description

Multiple heap-based buffer overflows in the read_attribute function in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allow remote attackers to have unspecified impact via a crafted OpenPGP certificate.

CWE-119Buffer Overflow

How to fix

Remediation Available

gnutls28Debian

Fixed in:3.5.8-1CVE-2017-5337

gnutls26Ubuntu

Fixed in:2.12.23-12ubuntu2.6USN-3183-1

gnutls28Ubuntu

Fixed in:3.4.10-4ubuntu1.2USN-3183-1

libgnutls26Ubuntu

Fixed in:2.12.23-12ubuntu2.6USN-3183-1

libgnutls30Ubuntu

Fixed in:3.4.10-4ubuntu1.2USN-3183-1

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 ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

6.18%probability of exploitation in 30 days

93rdpercentile

High risk: more likely to be exploited than 93% of all known CVEs.

References

Patch6

Vendor Advisory1

gnutls.org

Third-Party Advisory3

Other references2

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-4966	Critical	9.4	100%	KEV + Ransom	Fix
CVE-2017-11882	High	7.8	100%	KEV + Ransom	-
CVE-2020-0796	Critical	10.0	100%	KEV + Ransom	-
CVE-2008-4250	Critical	9.8	99%	KEV	-
CVE-2017-15944	Critical	9.8	98%	KEV	Fix
CVE-2015-0014	High	10.0	97%	-	-

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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.