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Time CVE-2026-25727

MEDIUM
Stack-based Buffer Overflow (CWE-121)
2026-02-06 security-advisories@github.com GHSA-r6v5-fh4h-64xc
Denial Of Service Red Hat Time Suse
6.5
CVSS 3.1 · GitHub Advisory
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Vulnerability Assessment

Weakness
CWE
CWE-121
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V15 - Secure Coding and Architecture Stack buffer bounds checking
MITRE ATT&CK

1 technique across 1 tactic: Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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Impact

CVSS 6.5 (MEDIUM). Attack vector: Network. Complexity: Low. Privileges required: None. User interaction: Required.
Exploit ScenarioDerived

An attacker could exploit this vulnerability to compromise the affected system.
This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

The Rust time library versions 0.3.6 through 0.3.46 are vulnerable to denial of service through stack exhaustion when processing maliciously crafted RFC 2822 formatted input. An unauthenticated attacker can trigger recursive parsing of deprecated RFC 2822 features to exhaust stack memory and crash applications using affected versions. A patch implementing recursion depth limits is available in version 0.3.47 and later.

Earlier versions of this analysis (1)
v1 Mar 12, 2026 - 21:54 CVSS 6.5

time provides date and time handling in Rust. From 0.3.6 to before 0.3.47, when user-provided input is provided to any type that parses with the RFC 2822 format, a denial of service attack via stack exhaustion is possible. [CVSS 6.5 MEDIUM]

RemediationAI

A vendor patch is available — apply it immediately. Restrict network access to the affected service where possible.

Affected Packages

cargo time fix: 0.3.47

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in cargo

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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Technical ContextAI · show details

Classified as CWE-121 (Stack-based Buffer Overflow). Affects Time. time provides date and time handling in Rust. From 0.3.6 to before 0.3.47, when user-provided input is provided to any type that parses with the RFC 2822 format, a denial of service attack via stack exhaustion is possible. The attack relies on formally deprecated and rarely-used features that are part of the RFC 2822 format used in a malicious manner. Ordinary, non-malicious input will never encounter this scenario. A limit to the depth of recursion was added in v0.3.47. From this version, an er

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Severity by source

GitHub Advisory PRIMARY 6.5 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SUSE MEDIUM
Red Hat 5.9 MEDIUM

Primary rating from GitHub Advisory.

CVSS VectorGitHub Advisory

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

2
Patch released
Feb 24, 2026 - 15:23 nvd
Patch available
CVE Published
Feb 06, 2026 - 20:16 nvd
MEDIUM 6.5

DescriptionGitHub Advisory

time provides date and time handling in Rust. From 0.3.6 to before 0.3.47, when user-provided input is provided to any type that parses with the RFC 2822 format, a denial of service attack via stack exhaustion is possible. The attack relies on formally deprecated and rarely-used features that are part of the RFC 2822 format used in a malicious manner. Ordinary, non-malicious input will never encounter this scenario. A limit to the depth of recursion was added in v0.3.47. From this version, an error will be returned rather than exhausting the stack.

Executive ViewAI

Why It Matters

Organizations using Rust. From 0.3.6 to should be aware of notable risk from CVE-2026-25727, a stack-based buffer overflow vulnerability rated CVSS 6.5. Exploitation could cause memory corruption or application crashes. A patch is available and should be applied during regular vulnerability management.

Business Impact: Moderate
Compensating Controls

Apply vendor patch. If patching is delayed: enable ASLR/DEP, apply network segmentation.

Threat Intelligence Overview

EPSS Score
0.0%
Top 88% exploitable
Data Quality
5 sources
Confidence: Medium
NVD CVE.org EPSS MSRC Vendor GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.0%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No

Priority Score

32
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +32
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Denial of Service MEDIUM

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)GitHub Advisory

cpe:2.3:a:time_project:time:*:*:*:*:*:rust:*:*

More in Time

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CVE-2023-28756 MEDIUM
5.3 Mar 31

A ReDoS issue was discovered in the Time component through 0.2.1 in Ruby through 3.2.1. Rated medium severity (CVSS 5.3)
CVE-2020-26235 MEDIUM
5.3 Nov 24

In Rust time crate from version 0.2.7 and before version 0.2.23, unix-like operating systems may segfault due to derefer

Same weakness CWE-121 – Stack-based Buffer Overflow

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CVE-2012-10023 MEDIUM POC
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Same technique Denial Of Service

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CVE-2015-5119 CRITICAL POC
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CVE-2011-2462 CRITICAL POC
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CVE-2011-0611 HIGH POC
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CVE-2012-1889 HIGH POC
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CVE-2012-0507 CRITICAL POC
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CVE-2014-1761 HIGH POC
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CVE-2015-5122 CRITICAL POC
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CVE-2011-0609 HIGH POC
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Vendor StatusVendor

SUSE

Severity: Medium
Product Status
Container suse/manager/5.0/x86_64/server-attestation:latest Affected
Container suse/multi-linux-manager/5.1/x86_64/server-attestation:5.1.2.8.15.2 Image server-attestation-image Affected
Container suse/sl-micro/6.0/baremetal-os-container:2.1.3-6.61 Affected
Container suse/sl-micro/6.0/base-os-container:2.1.3-7.28 Affected
Container suse/sl-micro/6.0/kvm-os-container:2.1.3-6.53 Container suse/sl-micro/6.0/rt-os-container:2.1.3-7.63 Affected

References

Advisories & patches
PATCH https://github.com/time-rs/time/commit/1c63dc7985b8fa26bd8c689423cc56b7a03841ee ADVISORY https://github.com/time-rs/time/security/advisories/GHSA-r6v5-fh4h-64xc ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:0452/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:0453/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:0470/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:0505/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:0506/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:0514/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:0582/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:0620/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:0806/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:0816/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:0819/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:0860/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20526/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20534/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20575/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20661/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20684/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20723/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20744/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2026:20748/ REF https://github.com/time-rs/time/blob/main/CHANGELOG.md#0347-2026-02-05 REF https://github.com/time-rs/time/releases/tag/v0.3.47

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