Every CVESearch/Get API key

CVE-1999-0159

Attackers can crash a Cisco IOS router or device, provided they can get to an interactive prompt ...

5.0 Medium

CVE-1999-0159 is a medium vulnerability (CVSS 5.0) in Cisco Ios, published August 12, 1998. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.10%, the 66th percentile. No source names a fixed version.

What does this mean?
Severity
5.0 MediumCVSS 2.0, NVD
Exploit chance
1.10%EPSS, 66th percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
No fix listedNo source names one

Description

Attackers can crash a Cisco IOS router or device, provided they can get to an interactive prompt (such as a login). This applies to some IOS 9.x, 10.x, and 11.x releases.

Exploit likelihood

1.10%Up 0.2 points since Feb 4, 2022
90%50%10%1%

Affected products

What each source reports

CVE List3.5

Attackers can crash a Cisco IOS router or device, provided they can get to an interactive prompt (such as a login). This applies to some IOS 9.x, 10.x, and 11.x releases.

Record
CVE-1999-0159
CVSS 3.1
3.5 LowCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
Weakness
CWE-400
Updated
2026-11-02
EUVDEUVD-1999-01593.5

Attackers can crash a Cisco IOS router or device, provided they can get to an interactive prompt (such as a login). This applies to some IOS 9.x, 10.x, and 11.x releases.

Record
EUVD-1999-0159
CVSS 3.1
3.5 LowCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
Updated
2026-11-02
GitHub AdvisoriesGHSA-wrp8-556f-jx6r3.5

Attackers can crash a Cisco IOS router or device, provided they can get to an interactive prompt ...

Attackers can crash a Cisco IOS router or device, provided they can get to an interactive prompt (such as a login). This applies to some IOS 9.x, 10.x, and 11.x releases.

Record
GHSA-wrp8-556f-jx6r
CVSS 3.1
3.5 LowCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
Weakness
CWE-400
Updated
2026-11-02
NVD3.5

Attackers can crash a Cisco IOS router or device, provided they can get to an interactive prompt (such as a login). This applies to some IOS 9.x, 10.x, and 11.x releases.

Record
CVE-1999-0159
CVSS 3.1
3.5 LowCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness
CWE-400
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

MoveEnter Open