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🛡️ CVE-2023-0617 — tew-811dru-firmware

🟠 CVSS 7.5 — High ⚠️ Exploit Public CWE-120 NVD
7.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

A vulnerability was found in TRENDNet TEW-811DRU 1.0.10.0. It has been classified as critical. This affects an unknown part of the file /wireless/guestnetwork.asp of the component httpd. The manipulation leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-219957 was assigned to this vulnerability.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: None.
  • Integrity impact: None.
  • Availability impact: High — total loss, or loss the attacker controls.

Weakness class

CVE-2023-0617 is classified as CWE-120: Classic Buffer Overflow. Input is copied into a fixed-size buffer without a length check, overwriting memory past the end of it.

Affected software

CVE-2023-0617 is recorded against 1 package.

  • tew-811dru-firmware

Timeline and source

Published on 1 February 2023 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. Record sourced from NVD.

References

vuldb.com
vuldb.com
vuldb.com
vuldb.com

Other advisories for this package

tew-811dru-firmware has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-120: Classic Buffer Overflow) in other software:

Details

Severity HIGH
CVSS Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-120
Public Exploit ⚠️ Yes
Source NVD
Published 2023-02-01
Updated 2026-08-20
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
tew-811dru-firmware — —

References

Permissions Required, Third Party Advisory https://vuldb.com/?ctiid.219957
Exploit, Permissions Required, Third Party Advisory https://vuldb.com/?id.219957
Permissions Required, Third Party Advisory https://vuldb.com/?ctiid.219957
Exploit, Permissions Required, Third Party Advisory https://vuldb.com/?id.219957

Similar Threats

Exploit Protection

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CVE-2023-0617 carries CVSS 7.5 High rating and a public exploit already exists. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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