How severe is CVE-2023-20073?

CVE-2023-20073 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2023-20073 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 89% (100th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-20073?

CVE-2023-20073 primarily affects Cisco Rv340 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-20073?

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

When was CVE-2023-20073 published?

CVE-2023-20073 was published on 2023-04-05 and last updated on 2026-06-17.

CVE-2023-20073

CVE-2023-20073 is a medium-severity vulnerability in Cisco Rv340 Firmware with a CVSS 3.x base score of 5.3. Its EPSS exploit-prediction score of 89% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-434.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 89% (100th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Cisco Rv340 Firmware
Published: 2023-04-05
Last modified: 2026-06-17

Description

A vulnerability in the web-based management interface of Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an unauthenticated, remote attacker to upload arbitrary files to an affected device. This vulnerability is due to insufficient authorization enforcement mechanisms in the context of file uploads. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to upload arbitrary files to the affected device.

Frequently asked questions

What is CVE-2023-20073?: A vulnerability in the web-based management interface of Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an unauthenticated, remote attacker to upload arbitrary files to an affected device. This vulnerability is due to insufficient authorization enforcement mechanisms in the context of file uploads. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to upload arbitrary files to the affected device.
How severe is CVE-2023-20073?: CVE-2023-20073 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2023-20073 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 89% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-20073?: CVE-2023-20073 primarily affects Cisco Rv340 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-20073?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-20073 published?: CVE-2023-20073 was published on 2023-04-05 and last updated on 2026-06-17.

References

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

Affected products (4)

cpe:2.3:o:cisco:rv340_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv340w_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv345_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv345p_firmware:*:*:*:*:*:*:*:*

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