F5 BIG-IP/BIG-IP Next SPK/BIG-IP Next CNF MPTCP use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.9$0-$5k0.83

Summaryinfo

A vulnerability, which was classified as critical, was found in F5 BIG-IP, BIG-IP Next SPK and BIG-IP Next CNF. Affected by this vulnerability is an unknown functionality of the component MPTCP. The manipulation results in use after free. This vulnerability is known as CVE-2025-48008. It is possible to launch the attack remotely. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in F5 BIG-IP, BIG-IP Next SPK and BIG-IP Next CNF (affected version not known). Affected is some unknown functionality of the component MPTCP. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

When a TCP profile with Multipath TCP (MPTCP) enabled is configured on a virtual server, undisclosed traffic along with conditions beyond the attacker's control can cause the Traffic Management Microkernel (TMM) to terminate.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

The advisory is shared for download at my.f5.com. This vulnerability is traded as CVE-2025-48008 since 10/04/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 03/30/2026).

The vulnerability scanner Nessus provides a plugin with the ID 270617 (F5 Networks BIG-IP : BIG-IP MPTCP vulnerability (K000150614)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (270617) and CERT Bund (WID-SEC-2025-2310). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • F5 F5OS
  • F5 BIG-IP

Productinfo

Type

Vendor

Name

License

Website

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: 8.1
VulDB Meta Temp Score: 7.9

VulDB Base Score: 8.6
VulDB Temp Score: 8.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Use after free
CWE: CWE-416 / 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: 270617
Nessus Name: F5 Networks BIG-IP : BIG-IP MPTCP vulnerability (K000150614)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

10/04/2025 CVE reserved
10/15/2025 +11 days Advisory disclosed
10/15/2025 +0 days VulDB entry created
03/30/2026 +166 days VulDB entry last update

Sourcesinfo

Vendor: f5.com

Advisory: K000150614
Status: Confirmed

CVE: CVE-2025-48008 (🔒)
GCVE (CVE): GCVE-0-2025-48008
GCVE (VulDB): GCVE-100-328680
CERT Bund: WID-SEC-2025-2310 - F5 BIG-IP und F5OS: Mehrere Schwachstellen

Entryinfo

Created: 10/15/2025 16:07
Updated: 03/30/2026 11:30
Changes: 10/15/2025 16:07 (75), 10/16/2025 05:41 (2), 03/30/2026 11:30 (7)
Complete: 🔍
Cache ID: 216:725:103

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