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CVE-2017-1000246

15
FAUCET Score

CVE-2017-1000246 describes a weak encryption vulnerability in pysaml2 versions 4.4.0 and earlier, where the IDP server reuses initialization vectors, compromising data confidentiality. This vulnerability carries a medium CVSS score of 5.3, indicating it can be exploited remotely with low attack complexity, potentially leading to unauthorized disclosure of sensitive information. Despite its potential impact, there is no evidence of active exploitation, no publicly available exploit code in common repositories like Metasploit or ExploitDB, and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.6.0CPE matchmatch criteria
cpe:2.3:a:pysaml2_project:pysaml2:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.91%
Probability of exploitation in next 30 days
EPSS Percentile
56.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0091 is in the 35th percentile among its peer group of 23,701 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (8)

github_advisorypatch availablevia nvd_reference
View patch
pippatch availablevia ghsa
Product: pysaml2Fixed in: 4.6.0
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)Fixed in: python-pysaml2
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 10 (Newton)Fixed in: python-pysaml2
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 11 (Ocata)Fixed in: python-pysaml2
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 12 (Pike)Fixed in: python-pysaml2
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 8 (Liberty)Fixed in: python-pysaml2
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 9 (Mitaka)Fixed in: python-pysaml2

Vendor Advisories (2)

pipGHSA-cq94-qf6q-mf2hmedium

Pysaml2 improperly initializes encryption vector

Jul 16, 2018
redhatCVE-2017-1000246Low

python-pysaml2: Reuse of AES initialization vector in AESCipher

May 24, 2017

References

github.com / rohe/pysaml2/issues/417
Issue TrackingPatchThird Party Advisory