CVE-2025-5848Public exploitNetwork attack vector

Authenticated memory corruption via crafted PPTP list

Published Jun 8, 2025 · Updated Jun 9, 2025

Buffer overflow in the AC15 15.03.05.19_multi PPTP-user POST handler allows remote authenticated users to corrupt memory via a crafted list parameter. The formSetPPTPUserList function passes the attacker-controlled list value through Var to strspn without first enforcing a safe input bound. An authenticated management session and network reachability are required; public evidence establishes memory corruption but not code execution or observed attacks.

CVSS severity8.8
High
EPSS probability0.96%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in the AC15 15.03.05.19_multi PPTP-user POST handler allows remote authenticated users to corrupt memory via a crafted list parameter. The formSetPPTPUserList function passes the attacker-controlled list value through Var to strspn without first enforcing a safe input bound. An authenticated management session and network reachability are required; public evidence establishes memory corruption but not code execution or observed attacks.

The record

CVE
CVE-2025-5848
Published
Jun 8, 2025
Updated
Jun 9, 2025
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
AC15
Classifications
CWE-120, CWE-119, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 8, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 9, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=15.03.05.19_multi

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · AC15version=15.03.05.19_multi

Published CVSS scores

9.0VulDBAV:N/AC:L/Au:S/C:C/I:C/A:C
7.4VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
8.8VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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