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CVE-2021-37652

24
FAUCET Score

CVE-2021-37652 is a use-after-free vulnerability in TensorFlow's tf.raw_ops.BoostedTreesCreateEnsemble operation, affecting versions prior to 2.6.0, 2.5.1, 2.4.3, and 2.3.4. This flaw arises from improper handling of reference-counted resources during initialization failures, leading to a double-free condition when a smart pointer attempts to free an already deallocated resource. With a CVSS score of 7.8 (High), this vulnerability allows a local attacker with low privileges to achieve high confidentiality, integrity, and availability impacts. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

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

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.17%
Probability of exploitation in next 30 days
EPSS Percentile
7.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0017 is in the 29th 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-m7fm-4jfh-jrg6high

Use after free in boosted trees creation

Aug 25, 2021

References

github.com / tensorflow/tensorflow/commit/5ecec9c6fbdbc6be03295685190a45e7eee726ab
PatchThird Party Advisory
github.com / tensorflow/tensorflow/security/advisories/GHSA-m7fm-4jfh-jrg6
Third Party Advisory