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CVE-2023-20198

CVE.org · Published

Historical CVEsJSONAI instructions

Record status
Published
Identifier year (not publication year)
2023
Source publication
Source updated
Imported by cveboard
Source snapshot
cve_2026-10-24_midnight_baseline ·

Plain text

CNA source text (English)

Cisco is providing an update for the ongoing investigation into observed exploitation of the web UI feature in Cisco IOS XE Software. We are updating the list of fixed releases and adding the Software Checker. Our investigation has determined that the actors exploited two previously unknown issues. The attacker first exploited CVE-2023-20198 to gain initial access and issued a privilege 15 command to create a local user and password combination. This allowed the user to log in with normal user access. The attacker then exploited another component of the web UI feature, leveraging the new local user to elevate privilege to root and write the implant to the file system. Cisco has assigned CVE-2023-20273 to this issue. CVE-2023-20198 has been assigned a CVSS Score of 10.0. CVE-2023-20273 has been assigned a CVSS Score of 7.2. Both of these CVEs are being tracked by CSCwh87343.

Scoped product and version facts

Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.

Exploitation unknown; this catalogue does not assess exploitation.

Cisco IOS XE Software

Vendor
Cisco
Product
Cisco IOS XE Software
Platforms
Unknown
Default status
Unknown
Cisco IOS XE Software · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
16.1.1affectedUnavailableUnavailableUnavailableNone listed
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17.1.1affectedUnavailableUnavailableUnavailableNone listed
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17.7.1affectedUnavailableUnavailableUnavailableNone listed
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17.10.1affectedUnavailableUnavailableUnavailableNone listed
17.10.1aaffectedUnavailableUnavailableUnavailableNone listed
17.10.1baffectedUnavailableUnavailableUnavailableNone listed
17.8.1affectedUnavailableUnavailableUnavailableNone listed
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17.11.1affectedUnavailableUnavailableUnavailableNone listed
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17.12.1affectedUnavailableUnavailableUnavailableNone listed
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17.11.99SWaffectedUnavailableUnavailableUnavailableNone listed