Is CVE-2016-1835 in the CISA KEV catalog?

No. CVE-2016-1835 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-1835?

CVE-2016-1835 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2016-1835?

CVE-2016-1835 has an EPSS score of 5.13% (91th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-1835?

Upgrade libxml2 on debian 11 to 2.9.3+dfsg1-1.1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2016-1835

HIGHEPSS 91th pctl

8.8

CVSS v3

NVD

Description

Use-after-free vulnerability in the xmlSAX2AttributeNs function in libxml2 before 2.9.4, as used in Apple iOS before 9.3.2 and OS X before 10.11.5, allows remote attackers to cause a denial of service via a crafted XML document.

CWE-119Buffer Overflow

How to fix

Remediation Available

libxml2Debian

Fixed in:2.9.3+dfsg1-1.1CVE-2016-1835

libxml2Ubuntu

Fixed in:2.9.1+dfsg1-3ubuntu4.8USN-2994-1

Fixed in:2.9.3+dfsg1-1ubuntu0.1USN-2994-1

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 InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

5.13%probability of exploitation in 30 days

91stpercentile

High risk: more likely to be exploited than 91% of all known CVEs.

References

Vendor Advisory4

Other references14

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 2026-05-06.