CVE-2013-7459

highpriority · track · 42EPSS 0.096 · 95 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

9.58% (95th) EPSS

CVSS 7.5 · high

Is it mine?

12 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · osv · cert_bund

EPSS · scored 2026-10-27

Heap-based buffer overflow in the ALGnew function in block_templace.c in Python Cryptography Toolkit (aka pycrypto) allows remote attackers to execute arbitrary code as demonstrated by a crafted iv parameter to cryptmsg.py.

cvss

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

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.09.8criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.09.8criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

v3.09criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-119USprimaryCWE-119US

affected products (12)

Products and version ranges known to be affected.

Amazon Linux 2all versionscert_bundDEcpe:/o:amazon:linux_2:-
Open Source python-cryptoall versionscert_bundDEcpe:/a:python:python-crypto:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
Ubuntu Linux 14.04 LTSall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:14.04:-:lts
Ubuntu Linux 16.04 LTSall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:16.04_lts
Ubuntu Linux 16.10all versionscert_bundDEcpe:/o:canonical:ubuntu_linux:16.10
n/a n/a≤ n/aenisa_euvdEU
dlitz pycrypto≤ 2.6.1nvdUScpe:2.3:a:dlitz:pycrypto:*:*:*:*:*:*:*:*
fedoraproject fedora= 24nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
fedoraproject fedora= 25nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
PyPI pycrypto≤ 2.6.1osvUSpkg:pypi/pycrypto
PyPI pycryptoall versionsosvUSpkg:pypi/pycrypto

advisories (3)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-1441Python-crypto: Schwachstelle ermöglicht Ausführen von beliebigem ProgrammcodeDeutsch2017-02-19csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in python-crypto ausnutzen, um beliebigen Programmcode auszuführen oder einen Denial of Service Angriff durchzuführen.
GHSA-cq27-v7xp-c356Buffer Overflow in pycrypto2018-12-14ghsa · osvUS
Heap-based buffer overflow in the ALGnew function in block_templace.c in Python Cryptography Toolkit (aka pycrypto) allows remote attackers to execute arbitrary code as demonstrated by a crafted iv parameter to cryptmsg.py.
PYSEC-2017-942017-02-15vendor · osvUS
Heap-based buffer overflow in the ALGnew function in block_templace.c in Python Cryptography Toolkit (aka pycrypto) allows remote attackers to execute arbitrary code as demonstrated by a crafted iv parameter to cryptmsg.py.

also known as (6)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv cert_bund nvd NVD CVE.org MITRE

published 2017-02-15modified 2026-06-17

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references (26)

External citations — patches, advisories, analysis.

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