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CVE-2023-20118· NVD / CVE Program· CNA cisco

A vulnerability in the web-based management interface of Cisco Small Business Routers RV016, RV042, RV042G, RV082, RV320, and RV325 Routers

Noroxi assessment

Priority: This week (action score 74/100)

  • CISA has confirmed exploitation in the wild (Mar 3, 2025). Remediation deadline for US federal agencies: Mar 24, 2025.
  • Probability of exploitation in the next 30 days: 54.1% (FIRST EPSS); higher than 99% of all records.
  • Anyone who can reach it over the internet can trigger it. Administrator privileges are required. No user action is required. No special conditions are required; it is repeatable.
  • According to the record, no fixed version is available yet.

Don’t wait for the next maintenance window. Until a fix is released, restrict access to the affected component and follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · CISA KEV · FIRST EPSS

A vulnerability in the web-based management interface of Cisco Small Business Routers RV016, RV042, RV042G, RV082, RV320, and RV325 Routers could allow an authenticated, remote attacker to execute arbitrary commands on an affected device. This vulnerability is due to improper validation of user input within incoming HTTP packets. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web-based management interface. A successful exploit could allow the attacker to gain root-level privileges and access unauthorized data. To exploit this vulnerability, an attacker would need to have valid administrative credentials on the affected device. Cisco has not and will not release software updates that address this vulnerability. However, administrators may disable the affected feature as described in the Workarounds ["#workarounds"] section. {{value}} ["%7b%7bvalue%7d%7d"])}]]

HighCVSS 7.2 · v3.1KEVWeaponized No fix recorded
Published
Apr 13, 2023
Updated
Jun 17, 2026
EPSS
54.1% · 99th percentile

Report tools

JSON

Action score

74

This week

Don’t wait for the next maintenance window.

CVSS
28 / 40 · 7.2 / 10
CISA KEV
30 / 30 · Listed
EPSS
16 / 30 · 54.1%

CISA SSVC decision

Exploitation
active
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
7.2
CNA · cisco
6.5
0.7 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Actively exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on Mar 3, 2025. That signals real attacks, not theory.

Remediation deadline for US federal agencies: Mar 24, 2025.

Get told when this record changes

  • In CISA KEV: exploitation in the wild confirmed
  • Weaponized exploit exists
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2023-20118

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

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Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
ciscorv016 firmware
ciscorv016
ciscorv042 firmware
ciscorv042
ciscorv042g firmware
ciscorv042g
ciscorv082 firmware
ciscorv082
ciscorv320 firmware
ciscorv320
ciscorv325 firmware
ciscorv325

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • cisco rv016 firmwareall versions
  • cisco rv042 firmwareall versions
  • cisco rv042g firmwareall versions
  • cisco rv082 firmwareall versions
  • cisco rv320 firmwareall versions
  • cisco rv325 firmwareall versions

Versions reported by the vendor

Affected version ranges reported by the assigning authority (cisco). Independent of NVD's CPE analysis and usually ahead of it.

  • Cisco Cisco Small Business RV Series Router Firmware

    • 1.0.1.17, 1.0.2.03, 1.1.0.09, 1.1.1.19, 1.1.1.06, 1.2.1.13, 1.2.1.14, 1.3.1.12, 1.3.2.02, 1.3.1.10, 1.4.2.15, 1.4.2.17 … (+6)affected

Same product

cisco: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-20025A vulnerability in the web-based management interface of Cisco Small Business RV016, RV042, RV042G, and RV082 Routers could allow an unauthe
    39Monitor
  • CVE-2020-3296Cisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution Vulnerabilities
    29Monitor
  • CVE-2020-3295Cisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution Vulnerabilities
    29Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2023-20150Apr 5, 2023 · Cisco Small Business RV016, RV042, RV042G, RV082 , RV320, and RV325 Routers Cross-Site Scripting Vulnerabilities
    24Monitor
  • ← EarlierCVE-2023-20151Apr 5, 2023 · Cisco Small Business RV016, RV042, RV042G, RV082 , RV320, and RV325 Routers Cross-Site Scripting Vulnerabilities
    24Monitor
  • Later →CVE-2024-20362Apr 3, 2024 · A vulnerability in the web-based management interface of Cisco Small Business RV016, RV042, RV042G, RV082, RV320, and RV325 Routers could al
    24Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. CISA KEV+690 d
  3. TodayOct 23, 2026+1289 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

—

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

  • CVE-2023-2002583 days apartA vulnerability in the web-based management interface of Cisco Small Business RV016, RV042, RV042G, and RV082 Routers could allow an unauthe
    39Monitor

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • Administrator privileges are required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection')

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Show all references (1 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records