Cisco Small Business RV Series Routers Stack-based Buffer Overflow Vulnerability
A vulnerability in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code elevate privileges, execute arbitrary commands, bypass authentication and authorization protections, fetch and run unsigned software, or cause a denial of service (DoS).
- Vendor
- Cisco
- Product
- Small Business RV160, RV260, RV340, and RV345 Series Routers
- CVSS
- 10.0
- EPSS (exploit probability)
- 14.9%
- Status
- kev
- CISA patch-by (BOD 22-01)
- Added to KEV
Is CVE-2022-20708 being exploited?
Yes. CISA added CVE-2022-20708 to its Known Exploited Vulnerabilities catalog on . CISA only lists a CVE when it has reliable evidence of exploitation in the wild.
FIRST's EPSS model puts the probability of exploitation activity in the next 30 days at 14.9% (scored October 14, 2026).
- CISA KEV[ LISTED ]
- ENISA EUVD (exploited)[ — ]
- CIRCL KEV[ — ]
Catalog snapshot 2026-11-13. Full cross-catalog view: /kev-comparison
CVE-2022-20708 timeline
Every event links to its source. Catalog dates are each catalog's own; day offsets count from NVD publication. Data: JSON
What to do
CISA required actionApply updates per vendor instructions.
US federal civilian agencies must remediate by (14 days after listing) under BOD 22-01. Everyone else: that deadline is a sensible upper bound, not a target. Vendor guidance and the NVD record are linked under Source above.
Other Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers CVEs we track
| CVE / Vulnerability | Severity | CVSS | EPSS | Added to KEV |
|---|---|---|---|---|
| CVE-2022-20703 Cisco Small Business RV Series Routers Stack-based Buffer Overflow Vulnerability | [ CRITICAL ] | 10.0 | 9.2% | |
| CVE-2022-20701 Cisco Small Business RV Series Routers Stack-based Buffer Overflow Vulnerability | [ CRITICAL ] | 10.0 | 9.7% | |
| CVE-2022-20700 Cisco Small Business RV Series Routers Stack-based Buffer Overflow Vulnerability | [ CRITICAL ] | 10.0 | 5.7% | |
| CVE-2022-20699 Cisco Small Business RV Series Routers Stack-based Buffer Overflow Vulnerability | [ CRITICAL ] | 10.0 | 72.5% |