F5 BIG-IP up to 16.1.4/17.1.1 TLS Signature out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability was found in F5 BIG-IP up to 16.1.4/17.1.1. It has been declared as critical. The affected element is an unknown function of the component TLS Signature Handler. The manipulation results in out-of-bounds write. This vulnerability is reported as CVE-2025-24326. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in F5 BIG-IP up to 16.1.4/17.1.1. Affected is some unknown processing of the component TLS Signature Handler. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on availability. CVE summarizes:

When BIG-IP Advanced WAF/ASM Behavioral DoS (BADoS) TLS Signatures feature is configured, undisclosed traffic can case an increase in memory resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

The advisory is available at my.f5.com. This vulnerability is traded as CVE-2025-24326 since 01/22/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 08/08/2025).

The vulnerability scanner Nessus provides a plugin with the ID 215015 (F5 Networks BIG-IP : BIG-IP ASM BADoS vulnerability (K000140950)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 16.1.5 or 17.1.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (215015). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔍
CNA CVSS-BT Score: 🔍
CNA Vector: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 215015
Nessus Name: F5 Networks BIG-IP : BIG-IP ASM BADoS vulnerability (K000140950)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: BIG-IP 16.1.5/17.1.2

Timelineinfo

01/22/2025 🔍
02/05/2025 +14 days 🔍
02/05/2025 +0 days 🔍
08/08/2025 +184 days 🔍

Sourcesinfo

Vendor: f5.com

Advisory: K000140950
Status: Confirmed

CVE: CVE-2025-24326 (🔍)
GCVE (CVE): GCVE-0-2025-24326
GCVE (VulDB): GCVE-100-294762

Entryinfo

Created: 02/05/2025 18:51
Updated: 08/08/2025 19:10
Changes: 02/05/2025 18:51 (77), 02/06/2025 00:03 (2), 08/08/2025 19:10 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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