Security Resilience

CVE-2018-0125

Cisco Rv132W Firmware 1.0

CISA KEVActive ExploitationEUVD Exploited
Published
08 February 2018
Modified
14 January 2026
KEV Added
25 March 2022
Patch / advisory
CVSS Score v3.1 9.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.55 99.0th percentile
Risk Priority 97 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2018-0125 is a critical-severity Improper Input Validation (CWE-20) vulnerability in Cisco Rv132W Firmware. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 1.0% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

A vulnerability exists in the web interface of the Cisco RV132W ADSL2+ Wireless-N VPN Router and RV134W VDSL2 Wireless-AC VPN Router. It stems from incomplete input validation of user-controlled data in HTTP requests, which permits remote code execution. The flaw is tracked under Cisco Bug IDs CSCvg92737 and CSCvh60170, carries a CVSS score of 9.8, and is also associated with CWE-20.

An unauthenticated remote attacker can exploit the issue by submitting a crafted HTTP request to an affected device. Successful exploitation grants the attacker the ability to run arbitrary commands with root privileges, obtain full control of the system, or trigger a reload that results in a denial-of-service condition.

The vulnerability is addressed in firmware release 1.0.1.11 for both router models, as stated in the Cisco Security Advisory cisco-sa-20180207-rv13x. Organizations should apply the updated firmware to eliminate the exposure.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

A vulnerability in the web interface of the Cisco RV132W ADSL2+ Wireless-N VPN and RV134W VDSL2 Wireless-AC VPN Routers could allow an unauthenticated, remote attacker to execute arbitrary code and gain full control of an affected system, including issuing commands…

more

with root privileges. The attacker could also cause an affected system to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to an incomplete input validation on user-controlled input in an HTTP request to the targeted device. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected system. A successful exploit could allow the attacker to execute arbitrary code as the root user and gain full control of the affected system or cause it to reload, resulting in a DoS condition. This vulnerability is fixed in firmware version 1.0.1.11 for the following Cisco products: RV132W ADSL2+ Wireless-N VPN Router and RV134W VDSL2 Wireless-AC VPN Router. Cisco Bug IDs: CSCvg92737, CSCvh60170.

CWE(s)
KEV Date Added
25 March 2022

Related Threats

CVEs Like This One

CVE-2009-2055Same vendor: Ciscoboth on KEV
CVE-2025-20393Same vendor: Ciscoboth on KEV
CVE-2018-0127Same product: Cisco Rv132W
CVE-2017-12319Same vendor: Ciscoboth on KEV
CVE-2017-3881Same vendor: Ciscoboth on KEV
CVE-2018-0159Same vendor: Ciscoboth on KEV
CVE-2020-3161Same vendor: Ciscoboth on KEV
CVE-2017-12235Same vendor: Ciscoboth on KEV
CVE-2017-12234Same vendor: Ciscoboth on KEV
CVE-2017-12233Same vendor: Ciscoboth on KEV

Affected Assets

cisco
rv132w firmware
1.0
cisco
rv134w firmware
1.0

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-20

Security testing and developer training directly verify and enforce proper input validation, reducing exploitability of injection and malformed-data weaknesses.

addresses: CWE-20

Security testing and evaluation at multiple SDLC stages directly detects missing or flawed input validation, with the required remediation process ensuring fixes are applied.

addresses: CWE-20

Directly implements checks on information inputs to reject invalid data before processing.

addresses: CWE-20

Spam protection mechanisms perform filtering and detection on inbound/outbound messages, directly compensating for missing or weak input validation of unsolicited content.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

blocks

A.8.25 mandates security requirements, secure coding guidelines, checkpoints, testing (incl. code scans) and developer training in the SDLC, which reaches a slice of input validation defects but leaves the majority (incomplete enforcement, second-order inputs, parser differentials, post-validation canonicalization) unaddressed as in the SA-3 and A.8.28 anchors.

blocks

Mandating input controls that include integrity checks and input validation ensures that untrusted data is examined before use, blocking the root cause of many injection and malformed-data weaknesses.

blocks

Security-by-design principles explicitly call for data validation and sanitization at every layer, reducing the chance that malformed or malicious input will be processed without scrutiny.

prevents

Requiring language-specific secure coding standards, peer review, SAST and documented mitigation of common programming errors forces validation of all inputs before they are trusted.

finds

Testing against a defined set of requirements and using code review plus vulnerability scanning forces validation of inputs and handling of unanticipated conditions, reducing the chance that malformed data will be accepted.

Hardening callouts derived

DISA STIG baselines are authored against specific weaknesses. Where this CVE cites a broad weakness class, the mapping is not asserted at that abstraction (owner ruling, 2026-09-25: grade only at Base and below), so no rule is shown here rather than a rule shown against the wrong grain.

  • No fine-grained STIG row for CWE-20, a class-level weakness, and none of its children carries one either.

References