How severe is CVE-2018-0199?

CVE-2018-0199 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2018-0199 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-0199?

CVE-2018-0199 primarily affects Cisco Jabber. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-0199?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-0199 published?

CVE-2018-0199 was published on 2018-02-22 and last updated on 2026-06-17.

CVE-2018-0199

CVE-2018-0199 is a medium-severity vulnerability in Cisco Jabber with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Cisco Jabber
Published: 2018-02-22
Last modified: 2026-06-17

Description

A vulnerability in Cisco Jabber Client Framework (JCF) could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of an affected device. The vulnerability is due to improper neutralization of script in attributes in a web page. An attacker could exploit this vulnerability by executing arbitrary JavaScript in the Jabber client of the recipient. An exploit could allow the attacker to perform remote code execution. Cisco Bug IDs: CSCve53989.

Frequently asked questions

What is CVE-2018-0199?: A vulnerability in Cisco Jabber Client Framework (JCF) could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of an affected device. The vulnerability is due to improper neutralization of script in attributes in a web page. An attacker could exploit this vulnerability by executing arbitrary JavaScript in the Jabber client of the recipient. An exploit could allow the attacker to perform remote code execution. Cisco Bug IDs: CSCve53989.
How severe is CVE-2018-0199?: CVE-2018-0199 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2018-0199 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-0199?: CVE-2018-0199 primarily affects Cisco Jabber. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-0199?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-0199 published?: CVE-2018-0199 was published on 2018-02-22 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:cisco:jabber:11.9:*:*:*:*:windows:*:*
cpe:2.3:a:cisco:jabber:11.9\(0\):*:*:*:*:windows:*:*
cpe:2.3:a:cisco:jabber:-:*:*:*:*:mac_os_x:*:*

More vulnerabilities in Cisco Jabber

CVE-2021-1418 — Critical (CVSS 9.9): Multiple vulnerabilities in Cisco Jabber for Windows, Cisco Jabber for MacOS, and Cisco Jabber for mobile platforms…
CVE-2021-1417 — Critical (CVSS 9.9): Multiple vulnerabilities in Cisco Jabber for Windows, Cisco Jabber for MacOS, and Cisco Jabber for mobile platforms…
CVE-2021-1411 — Critical (CVSS 9.9): Multiple vulnerabilities in Cisco Jabber for Windows, Cisco Jabber for MacOS, and Cisco Jabber for mobile platforms…
CVE-2021-1471 — Critical (CVSS 9.9): Multiple vulnerabilities in Cisco Jabber for Windows, Cisco Jabber for MacOS, and Cisco Jabber for mobile platforms…
CVE-2021-1469 — Critical (CVSS 9.9): Multiple vulnerabilities in Cisco Jabber for Windows, Cisco Jabber for MacOS, and Cisco Jabber for mobile platforms…
CVE-2020-26085 — Critical (CVSS 9.9): Multiple vulnerabilities in Cisco Jabber for Windows, Jabber for MacOS, and Jabber for mobile platforms could allow an…

All CVEs affecting Cisco Jabber →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →