How severe is CVE-2023-46549?

CVE-2023-46549 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-46549 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-46549?

CVE-2023-46549 affects Totolink X2000r Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-46549?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2023-46549 published?

CVE-2023-46549 was published on 2023-10-25 and last updated on 2026-06-17.

CVE-2023-46549

CVE-2023-46549 is a critical-severity vulnerability in Totolink X2000r Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Totolink X2000r Firmware
Published: 2023-10-25
Last modified: 2026-06-17

Description

TOTOLINK X2000R Gh v1.0.0-B20230221.0948.web was discovered to contain a stack overflow via the function formSetLg.

Frequently asked questions

What is CVE-2023-46549?: TOTOLINK X2000R Gh v1.0.0-B20230221.0948.web was discovered to contain a stack overflow via the function formSetLg.
How severe is CVE-2023-46549?: CVE-2023-46549 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-46549 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-46549?: CVE-2023-46549 affects Totolink X2000r Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-46549?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-46549 published?: CVE-2023-46549 was published on 2023-10-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:totolink:x2000r_firmware:1.0.0-b20230221.0948:*:*:*:*:*:*:*

More vulnerabilities in Totolink X2000r Firmware

CVE-2024-22529 — Critical (CVSS 9.8): TOTOLINK X2000R_V2 V2.0.0-B20230727.10434 has a command injection vulnerability in the sub_449040 (handle function of…
CVE-2023-51136 — Critical (CVSS 9.8): TOTOLINK X2000R Gh v1.0.0-B20230221.0948.web was discovered to contain a stack overflow via the function…
CVE-2023-51135 — Critical (CVSS 9.8): TOTOLINK X2000R Gh v1.0.0-B20230221.0948.web was discovered to contain a stack overflow via the function…
CVE-2023-51133 — Critical (CVSS 9.8): TOTOLINK X2000R Gh v1.0.0-B20230221.0948.web was discovered to contain a stack overflow via the function formRoute.
CVE-2023-46564 — Critical (CVSS 9.8): TOTOLINK X2000R Gh v1.0.0-B20230221.0948.web was discovered to contain a stack overflow via the function formDMZ.
CVE-2023-46563 — Critical (CVSS 9.8): TOTOLINK X2000R Gh v1.0.0-B20230221.0948.web was discovered to contain a stack overflow via the function formIpQoS.

All CVEs affecting Totolink X2000r Firmware →

Other CWE-787 (Out-of-bounds Write) vulnerabilities

CVE-2026-42369 — Critical (CVSS 10.0): GV-VMS V20 is a Video Monitoring Software used to gather the feeds of many surveillance cameras and manage other…
CVE-2026-4746 — Critical (CVSS 10.0): Out-of-bounds Write vulnerability in timeplus-io proton (base/poco/Foundation/src‎ modules). This vulnerability is…
CVE-2025-43300 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.8.5 and iPadOS…
CVE-2025-24201 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved checks to prevent unauthorized actions. This issue is fixed in…
CVE-2024-42479 — Critical (CVSS 10.0): llama.cpp provides LLM inference in C/C++. The unsafe `data` pointer member in the `rpc_tensor` structure can cause…
CVE-2024-39791 — Critical (CVSS 10.0): Stack-based buffer overflow vulnerabilities affecting Vonets industrial wifi bridge relays and wifi bridge…

Browse all CWE-787 (Out-of-bounds Write) vulnerabilities →