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CVE-2001-1382

The "echo simulation" traffic analysis countermeasure in OpenSSH before 2.9.9p2 sends an...

5.0 Medium

CVE-2001-1382 is a medium vulnerability (CVSS 5.0) in Openbsd Openssh, published September 27, 2001. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 7.61%, the 94th percentile. No source names a fixed version.

Severity
5.0 MediumCVSS 2.0, NVD
Exploit chance
7.61%EPSS, 94th percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
No fix listedNo source names one

Description

The "echo simulation" traffic analysis countermeasure in OpenSSH before 2.9.9p2 sends an additional echo packet after the password and carriage return is entered, which could allow remote attackers to determine that the countermeasure is being used.

Exploit likelihood

7.61%Up 6.6 points since Feb 4, 2022
90%50%10%1%

Affected products

What each source reports

NVD Score used5.0

The "echo simulation" traffic analysis countermeasure in OpenSSH before 2.9.9p2 sends an additional echo packet after the password and carriage return is entered, which could allow remote attackers to determine that the countermeasure is being used.

Record
CVE-2001-1382
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Updated
2026-11-02
CVE ListNo score

The "echo simulation" traffic analysis countermeasure in OpenSSH before 2.9.9p2 sends an additional echo packet after the password and carriage return is entered, which could allow remote attackers to determine that the countermeasure is being used.

Record
CVE-2001-1382
Updated
2026-11-02
EUVDEUVD-2001-1362No score

The "echo simulation" traffic analysis countermeasure in OpenSSH before 2.9.9p2 sends an additional echo packet after the password and carriage return is entered, which could allow remote attackers to determine that the countermeasure is being used.

Record
EUVD-2001-1362
Updated
2026-11-03
GitHub AdvisoriesGHSA-pw45-4wv8-37wmNo score

The "echo simulation" traffic analysis countermeasure in OpenSSH before 2.9.9p2 sends an...

The "echo simulation" traffic analysis countermeasure in OpenSSH before 2.9.9p2 sends an additional echo packet after the password and carriage return is entered, which could allow remote attackers to determine that the countermeasure is being used.

Record
GHSA-pw45-4wv8-37wm
Updated
2026-11-02

History

History
RecordedChangedSources
facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

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

References

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