CVE-2021-29617
An attacker can cause a denial of service via `CHECK`-fail in `tf.strings.substr` with invalid arguments.
Does this matter?
Lower severity and a low EPSS score (0.23%). Track it; it rarely justifies an emergency change on its own.
Description
TensorFlow is an end-to-end open source platform for machine learning. An attacker can cause a denial of service via `CHECK`-fail in `tf.strings.substr` with invalid arguments. The fix will be included in TensorFlow 2.5.0. We will also cherrypick this commit on TensorFlow 2.4.2, TensorFlow 2.3.3, TensorFlow 2.2.3 and TensorFlow 2.1.4, as these are also affected and still in supported range.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.23% probability · 14th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-755
- Affected
- google/tensorflow
- Source
- security-advisories@github.com
EPSS 0.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/tensorflow/issues/46900Broken Link
- https://github.com/tensorflow/issues/46974Broken Link
- https://github.com/tensorflow/tensorflow/commit/890f7164b70354c57d40eda52dcdd7658677c09fPatch, Third Party Advisory
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-mmq6-q8r3-48fmExploit, Patch, Third Party Advisory
- https://github.com/tensorflow/issues/46900Broken Link
- https://github.com/tensorflow/issues/46974Broken Link
- https://github.com/tensorflow/tensorflow/commit/890f7164b70354c57d40eda52dcdd7658677c09fPatch, Third Party Advisory
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-mmq6-q8r3-48fmExploit, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.