Vulnerability in Cisco iOS And Xe Software
CVE-2019-1761
A vulnerability in the Hot Standby Router Protocol (HSRP) subsystem of Cisco IOS and IOS XE Software could allow an unauthenticated, adjacent attacker to receive potentially sensitive information from an affected device. The vulnerability is due to insufficient memory initialization. An attacker could exploit this vulnerability by receiving HSRPv2 traffic from an adjacent HSRP member. A successful exploit could allow the attacker to receive potentially sensitive information from the adjacent device.
Vulnerability class: Dirty Pipe (CVE-2022-0847)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.006 (48.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Cisco iOS And Xe Software — versions 3.2.0SG, 3.2.1SG, 3.2.2SG
- Cisco iOS — versions 12.2\(33\)sce6, 15.2(4)ec2, 15.2(4)jb1
- Cisco iOS Xe — versions 3.2.0ja, 3.2.0se, 3.2.0sg
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327… (vendor-advisory, Patch, Vendor Advisory)
- www.securityfocus.com/bid/107620 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
Frequently asked questions
- What is CVE-2019-1761?
- CVE-2019-1761 is a medium-severity vulnerability in Cisco iOS And Xe Software, classified under Improper Initialization. CVSS score: 4.3/10. Published 2019-03-28.
- How severe is CVE-2019-1761?
- Medium severity. CVSS v3 base score is 4.3 out of 10.