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CVE-2021-37643

23
FAUCET Score

CVE-2021-37643 is a null pointer dereference vulnerability affecting TensorFlow versions prior to 2.6.0, 2.5.1, 2.4.3, and 2.3.4. This flaw occurs when the tf.raw_ops.MatrixDiagPartOp function receives an invalid or empty padding value, leading to a crash or incorrect behavior. Rated 7.1 HIGH (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H), it allows a local attacker with low privileges to achieve high impact on integrity and availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.3.0, < 2.3.4CPE matchmatch criteria
cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*
>= 2.4.0, < 2.4.3CPE matchmatch criteria
cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*
2.5.0CPE matchmatch criteria
cpe:2.3:a:google:tensorflow:2.5.0:*:*:*:*:*:*:*
2.6.0CPE matchmatch criteria
cpe:2.3:a:google:tensorflow:2.6.0:rc0:*:*:*:*:*:*
2.6.0CPE matchmatch criteria
cpe:2.3:a:google:tensorflow:2.6.0:rc1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.7HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.5
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.16%
Probability of exploitation in next 30 days
EPSS Percentile
5.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0016 is in the 24th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (10)

github_advisorypatch availablevia nvd_reference
View patch
pippatch availablevia ghsa
Product: tensorflowFixed in: 2.3.4
pippatch availablevia ghsa
Product: tensorflowFixed in: 2.4.3
pippatch availablevia ghsa
Product: tensorflowFixed in: 2.5.1
pippatch availablevia ghsa
Product: tensorflow-cpuFixed in: 2.3.4
pippatch availablevia ghsa
Product: tensorflow-cpuFixed in: 2.4.3
pippatch availablevia ghsa
Product: tensorflow-cpuFixed in: 2.5.1
pippatch availablevia ghsa
Product: tensorflow-gpuFixed in: 2.3.4
pippatch availablevia ghsa
Product: tensorflow-gpuFixed in: 2.4.3
pippatch availablevia ghsa
Product: tensorflow-gpuFixed in: 2.5.1

Vendor Advisories (1)

pipGHSA-fcwc-p4fc-c5cchigh

Null pointer dereference in `MatrixDiagPartOp`

Aug 25, 2021

References

github.com / tensorflow/tensorflow/commit/482da92095c4d48f8784b1f00dda4f81c28d2988
PatchThird Party Advisory
github.com / tensorflow/tensorflow/security/advisories/GHSA-fcwc-p4fc-c5cc
Third Party Advisory