A vulnerability in the Cisco Webex Teams client, formerly Cisco Spark, could allow an attacker to execute arbitrary commands on a targeted system. This vulnerability is due to unsafe search paths used by the application URI that is defined in Windows operating systems. An attacker could exploit this vulnerability by convincing a targeted user to follow a malicious link. Successful exploitation could cause the application to load libraries from the directory targeted by the URI link. The attacker could use this behavior to execute arbitrary commands on the system with the privileges of the targeted user if the attacker can place a crafted library in a directory that is accessible to the vulnerable system.
CVE-2019-1636
Score elevated to 8.2 because EPSS predicts 47% probability of exploitation within the next 30 days (top 1.3% of all CVEs). NVD baseline CVSS 7.8 retained for reference. Confidence: see factors.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.8
- EG Score
- 8.2(high)
- EG Risk
- 56(Track)EG Risk 56/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity82% × 45%Exploitation47% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 98.7%
- KEV
- Not listed
Published
January 23, 2019
Last Modified
November 21, 2024
References (4)
- psirt@ciscohttp://www.securityfocus.com/bid/106718
- psirt@ciscohttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190123-webex-teams
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/106718
- af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190123-webex-teams
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 11× in last 7d / 32× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-23 14:15 UTCEPSS rescore
- 2026-07-23 01:41 UTCEG score recompute▲ 0.40
- 2026-07-22 22:21 UTCEG score recompute
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- 2026-06-29 14:03 UTCEPSS rescore
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- 2026-05-29 13:42 UTCEPSS rescore
- 2026-05-28 13:43 UTCEPSS rescore
- 2026-05-27 23:02 UTCEG score recompute
- 2026-05-27 23:02 UTCGHSA enrichment
- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-26 13:42 UTCEPSS rescore
- 2026-05-26 13:42 UTCEPSS rescore
- 2026-05-23 08:31 UTCOSV refresh
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Same CWE
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Frequently asked(5)
What is CVE-2019-1636?
When was CVE-2019-1636 disclosed?
Is CVE-2019-1636 actively exploited?
What is the CVSS score of CVE-2019-1636?
How do I remediate CVE-2019-1636?
Dependency Blast Radius
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