No exploitation reported

CVE-2016-2842

No exploitation reported by the sources we read.

Published2016-03-03
WeaknessCWE-119

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

The doapr_outch function in crypto/bio/b_print.c in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g does not verify that a certain memory allocation succeeds, which allows remote attackers to cause a denial of service (out-of-bounds write or memory consumption) or possibly have unspecified other impact via a long string, as demonstrated by a large amount of ASN.1 data, a different vulnerability than CVE-2016-0799.

Timeline

dates in UTC

2016-03-0320:59CVE publishedNVD
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2016-2842?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2016-2842?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

OpenSSL

Branch	Affected	Fixed in	Source
1.0	= 1.0.1	no fix published	NVD
1.0	= 1.0.1a	no fix published	NVD
1.0	= 1.0.1b	no fix published	NVD
1.0	= 1.0.1c	no fix published	NVD
1.0	= 1.0.1d	no fix published	NVD
1.0	= 1.0.1e	no fix published	NVD
1.0	= 1.0.1f	no fix published	NVD
1.0	= 1.0.1g	no fix published	NVD
1.0	= 1.0.1h	no fix published	NVD
1.0	= 1.0.1i	no fix published	NVD
1.0	= 1.0.1j	no fix published	NVD
1.0	= 1.0.1k	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

openssl.orgVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.09.8read 2026-10-23
NVDCVSS 2.010read 2026-10-23
NVDweakness (CWE)CWE-119read 2026-10-23
FIRST EPSSEPSS score53.7 %read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2016-03-03
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2016-2842?

Is CVE-2016-2842 actively exploited?

Active exploitation of CVE-2016-2842 has not been confirmed. Its EPSS score was 53.7% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2016-2842?

CVE-2016-2842 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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