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CVE-2022-42787

Wiesemann & Theis: Small number space for allocating session id in Com-Server family

8.8 High

CVE-2022-42787 is a high vulnerability (CVSS 8.8) in Wiesemann & Theis At-modem-emulator, published November 10, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.89%, the 59th percentile. No source names a fixed version.

What does this mean?
Severity
8.8 HighCVSS 3.1, CVE List
Exploit chance
0.89%EPSS, 59th percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
No fix listedNo source names one

Description

Multiple W&T products of the Comserver Series use a small number space for allocating sessions ids. After login of an user an unathenticated remote attacker can brute force the users session id and get access to his account on the the device. As the user needs to log in for the attack to be successful a user interaction is required.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.89%Down 0.2 points since Nov 11, 2022
90%50%10%1%

Affected products

Show 22 moreShow less

What each source reports

CVE List Score used8.8

Wiesemann & Theis: Small number space for allocating session id in Com-Server family

Multiple W&T products of the Comserver Series use a small number space for allocating sessions ids. After login of an user an unathenticated remote attacker can brute force the users session id and get access to his account on the the device. As the user needs to log in for the attack to be successful a user interaction is required.

Record
CVE-2022-42787
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-330
Updated
2026-11-02
EUVDEUVD-2022-458508.8

Multiple W&T products of the Comserver Series use a small number space for allocating sessions ids. After login of an user an unathenticated remote attacker can brute force the users session id and get access to his account on the the device. As the user needs to log in for the attack to be successful a user interaction is required.

Record
EUVD-2022-45850
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-qgc9-3m4w-r9w29.8

Multiple W&T products of the Comserver Series use a small number space for allocating sessions...

Multiple W&T products of the Comserver Series use a small number space for allocating sessions ids. An unathenticated remote attacker can brute force the session id and gets access to an account on the the device.

Record
GHSA-qgc9-3m4w-r9w2
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-330
Updated
2026-11-02
NVD8.8

Multiple W&T products of the Comserver Series use a small number space for allocating sessions ids. After login of an user an unathenticated remote attacker can brute force the users session id and get access to his account on the the device. As the user needs to log in for the attack to be successful a user interaction is required.

Record
CVE-2022-42787
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-330
Updated
2026-11-02

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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