CVE-2021-29908Network attack vector

Unauthenticated administrative access via crafted URL

Published Oct 6, 2021 · Updated Sep 16, 2024

Authentication bypass in IBM TS7700 Management Interface allows remote attackers to gain administrative access via a specially crafted URL. The interface accepts the crafted URL without enforcing authentication and exposes administrative functions. The attack is unauthenticated and network reachable; successful access can change management settings and read protected configuration data, while no service interruption is described.

CVSS severity9.1
Critical
EPSS probability2.07%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in IBM TS7700 Management Interface allows remote attackers to gain administrative access via a specially crafted URL. The interface accepts the crafted URL without enforcing authentication and exposes administrative functions. The attack is unauthenticated and network reachable; successful access can change management settings and read protected configuration data, while no service interruption is described.

The record

CVE
CVE-2021-29908
Published
Oct 6, 2021
Updated
Sep 16, 2024
Vendor
IBM
Product
IBM TS7770 Virtualization Engine (3957-VED)
Classifications
T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 6, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record 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=8.51.0.63
  2. Affected versionversion=8.51.1.26
  3. Affected versionversion=8.52.100.32

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · IBM TS7770 Virtualization Engine (3957-VED)version=8.51.0.63; version=8.51.1.26; version=8.52.100.32
IBM · IBM TS7760 Virtualization Engine (3957-VEC)version=8.51.0.63; version=8.51.1.26; version=8.52.100.32

Published CVSS scores

9.1IBMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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