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CVE-2023-20073

86
FAUCET Score

CVE-2023-20073 is a critical vulnerability affecting the web-based management interface of Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers. This flaw allows an unauthenticated, remote attacker to upload arbitrary files due to insufficient authorization enforcement during file uploads. With a CVSS score of 9.8 (CRITICAL) and an EPSS score of 0.91399, the vulnerability presents a severe risk, enabling full compromise of confidentiality, integrity, and availability. While not currently listed on CISA's KEV catalog, exploit code is available via Nuclei templates, and there is significant community discussion, indicating a high potential for exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.0.03.29CPE matchmatch criteria
cpe:2.3:o:cisco:rv340_firmware:*:*:*:*:*:*:*:*
<= 1.0.03.29CPE matchmatch criteria
cpe:2.3:o:cisco:rv340w_firmware:*:*:*:*:*:*:*:*
<= 1.0.03.29CPE matchmatch criteria
cpe:2.3:o:cisco:rv345_firmware:*:*:*:*:*:*:*:*
<= 1.0.03.29CPE matchmatch criteria
cpe:2.3:o:cisco:rv345p_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
88.87%
Probability of exploitation in next 30 days
EPSS Percentile
99.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2023-20073 · Aug 21, 2023
This CVE's current EPSS score of 0.8887 is in the 99th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

sec.cloudapps.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-rv-afu-EXxwA65V
Vendor Advisory