CVE-2023-27065Public exploitNetwork attack vector

Unauthenticated service interruption via unbounded picName

Published Mar 13, 2023 · Updated Feb 27, 2025

Buffer overflow in Tenda V15EV1.0 firmware 15.11.0.14(1521_3190_1058) allows remote attackers to interrupt HTTP service via a crafted request. The formDelWewifiPic function in /bin/httpd passes the unbounded picName parameter to sprintf, overflowing its destination buffer. No authentication or user interaction is required; reaching the HTTP endpoint is sufficient to interrupt the service.

CVSS severity7.5
High
EPSS probability0.90%
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 Tenda V15EV1.0 firmware 15.11.0.14(1521_3190_1058) allows remote attackers to interrupt HTTP service via a crafted request. The formDelWewifiPic function in /bin/httpd passes the unbounded picName parameter to sprintf, overflowing its destination buffer. No authentication or user interaction is required; reaching the HTTP endpoint is sufficient to interrupt the service.

The record

CVE
CVE-2023-27065
Published
Mar 13, 2023
Updated
Feb 27, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 13, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 27, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1499Endpoint Denial of Service

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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