CVE-2020-26235

Name: CVE-2020-26235
Creator: NVD / NIST
Published: 2020-11-24T22:15:11.657+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 1.88%

Last modified Jun 17, 2026

CVE-2020-26235 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. In Rust time crate from version 0.2.7 and before version 0.2.23, unix-like operating systems may segfault due to dereferencing a dangling pointer in specific circumstances. This requires the user to set any environment variable in a different thread than the affected functions. EPSS estimates a 1.88% chance of exploitation in the next 30 days.

Description

In Rust time crate from version 0.2.7 and before version 0.2.23, unix-like operating systems may segfault due to dereferencing a dangling pointer in specific circumstances. This requires the user to set any environment variable in a different thread than the affected functions. The affected functions are time::UtcOffset::local_offset_at, time::UtcOffset::try_local_offset_at, time::UtcOffset::current_local_offset, time::UtcOffset::try_current_local_offset, time::OffsetDateTime::now_local and time::OffsetDateTime::try_now_local. Non-Unix targets are unaffected. This includes Windows and wasm. The issue was introduced in version 0.2.7 and fixed in version 0.2.23.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

1.88%

76.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Time Project	Time	>= 0.2.7, < 0.2.23

References

https://crates.io/crates/time/0.2.23Release Notes, Vendor Advisory
https://github.com/time-rs/time/issues/293Issue Tracking, Third Party Advisory
https://github.com/time-rs/time/security/advisories/GHSA-wcg3-cvx6-7396Patch, Third Party Advisory
https://crates.io/crates/time/0.2.23Release Notes, Vendor Advisory
https://github.com/time-rs/time/issues/293Issue Tracking, Third Party Advisory
https://github.com/time-rs/time/security/advisories/GHSA-wcg3-cvx6-7396Patch, Third Party Advisory

Timeline

Published: Nov 24, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-26235?

How severe is CVE-2020-26235?

CVE-2020-26235 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.88% probability of exploitation in the next 30 days.

How do I fix CVE-2020-26235?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-26235?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST