CVE-2025-61723: Quadratic complexity when parsing some invalid inputs in encoding/pem

Published Oct 29, 2025
·
Updated

Quadratic complexity when parsing some invalid inputs in encoding/pem

Other sources

The processing time for parsing some invalid inputs scales non-linearly with respect to the size of the input. This affects programs which parse untrusted PEM inputs.

MITRE

Affected Software

14 affected componentsFixes available
Microsoft azl3 golang 1.23.12-1
Microsoft cbl2 msft-golang 1.24.8-1
Microsoft cbl2 golang 1.22.7-5
Microsoft azl3 golang 1.25.3-1
Microsoft cbl2 golang 1.18.8-10
Microsoft cbl2 msft-golang 1.24.9-1
Microsoft cbl2 msft-golang 1.24.11-1
Microsoft azl3 golang 1.25.5-1
Golang Go<1.24.8
Golang Go>=1.25.0<1.25.2
F5 BIG-IP Next for Kubernetes=2.1.0
2.2.0
F5 F5OS-A>=1.8.0<=1.8.3
F5 F5OS-C>=1.8.0<=1.8.2
IBM API Connect V12 OnPrem<=All

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 2.2.0

Event History

Oct 29, 2025
CVE Published
via MITRE·10:10 PM
Data Sourced
via MITRE·10:10 PM
DescriptionWeakness
Data Sourced
via NVD·11:16 PM
RemedyDescriptionSeverityWeaknessAffected Software
Oct 31, 2025
Data Sourced
via Microsoft·01:07 AM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·01:07 AM
Affected Software
Updated
via Microsoft·01:07 AM
DescriptionSeverity
Feb 5, 2026
Advisory Published
via F5·07:41 PM
Data Sourced
via F5·07:41 PM
DescriptionSeverityWeaknessAffected Software
Jul 7, 2026
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2025-61723?

CVE-2025-61723 has a moderate severity due to the potential denial of service risk when parsing large untrusted PEM inputs.

2

How do I fix CVE-2025-61723?

To fix CVE-2025-61723, upgrade to a patched version of the affected software, specifically Golang versions that address this vulnerability.

3

What software is affected by CVE-2025-61723?

CVE-2025-61723 affects multiple Microsoft Golang products including versions 1.18.8-10, 1.22.7-5, 1.23.12-1, 1.24.8-1, and 1.25.3-1.

4

What is the impact of CVE-2025-61723?

The impact of CVE-2025-61723 includes increased processing time for parsing invalid PEM inputs which could lead to denial of service.

5

Can CVE-2025-61723 be exploited remotely?

Yes, CVE-2025-61723 can potentially be exploited remotely if a system processes untrusted PEM inputs from an external source.

Contact

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