CVE-2016-1494

mediumpriority · track · 33EPSS 0.071 · 94 %ileexploit · PoCEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

7.05% (94th) EPSS

CVSS 5 · medium

Is it mine?

8 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · osv · nvd

EPSS · scored 2026-10-27

The verify function in the RSA package for Python (Python-RSA) before 3.3 allows attackers to spoof signatures with a small public exponent via crafted signature padding, aka a BERserk attack.

cvss

Technical severity, 0–10. One row per scoring source.

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05mediumAV:N/AC:L/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.05.3mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 1.4

v3.05.3mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nsecondary · OSV

v3.05mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:Psecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimaryCWE-20USCWE-347US

exploits (1)

Public proof-of-concept and weaponised exploit code.

matthiasbe/secuimag3aExploit of the CVE-2016-1494 allowing to forge signatures of RSA keys with low exponentsPoC · poc_in_github

affected products (8)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
fedoraproject fedora= 22nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
fedoraproject fedora= 23nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
opensuse leap= 42.1nvdUScpe:2.3:o:opensuse:leap:*:*:*:*:*:*:*:*
opensuse opensuse= 13.1nvdUScpe:2.3:o:opensuse:opensuse:*:*:*:*:*:*:*:*
opensuse opensuse= 13.2nvdUScpe:2.3:o:opensuse:opensuse:*:*:*:*:*:*:*:*
python rsa< 3.3nvdUScpe:2.3:a:python:rsa:*:*:*:*:*:*:*:*
PyPI rsa< 3.3osvUSpkg:pypi/rsa

advisories (2)

Vendor and ecosystem advisories describing this.

GHSA-8rjr-6qq5-pj9pPython RSA allows attackers to spoof signatures2022-05-14ghsa · osvUS
The verify function in the RSA package for Python (Python-RSA) before 3.3 allows attackers to spoof signatures with a small public exponent via crafted signature padding, aka a BERserk attack.
PYSEC-2016-102016-01-13vendor · osvUS
The verify function in the RSA package for Python (Python-RSA) before 3.3 allows attackers to spoof signatures with a small public exponent via crafted signature padding, aka a BERserk attack.

also known as (6)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv nvd NVD CVE.org MITRE

published 2016-01-13modified 2026-06-17

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+25193 more

references (25)

External citations — patches, advisories, analysis.

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