CVE-2026-11516Public exploit

Authenticated router crash via unchecked NatBinds copy

Published Jun 8, 2026 · Updated Jun 8, 2026

Buffer overflow in UTT HiPER 2610G 3.0.0-171107 allows remote authenticated users to crash the router via a crafted NAT request. In /goform/formNatStaticMap, strcpy copies attacker-controlled NatBinds data into a fixed-offset destination without a length check. Adjacent-network access and valid management credentials are required; the public artifact supplies a crash payload but no demonstrated code execution.

CVSS severity5.5
Medium
EPSS probability0.37%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in UTT HiPER 2610G 3.0.0-171107 allows remote authenticated users to crash the router via a crafted NAT request. In /goform/formNatStaticMap, strcpy copies attacker-controlled NatBinds data into a fixed-offset destination without a length check. Adjacent-network access and valid management credentials are required; the public artifact supplies a crash payload but no demonstrated code execution.

The record

CVE
CVE-2026-11516
Published
Jun 8, 2026
Updated
Jun 8, 2026
Vendor
Shanghai Aitai Technology Co., Ltd.
Product
HiPER 2610G
Classifications
CWE-120, CWE-119, T1499
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 8, 2026Record 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=3.0.0-171107

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

Shanghai Aitai Technology Co., Ltd. · HiPER 2610Gversion=3.0.0-171107

Published CVSS scores

2.0VulDBCVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
5.5VulDBCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
5.2VulDBAV:A/AC:L/Au:S/C:P/I:P/A:P

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)
Vectoradjacent
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
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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