CVE-2023-45577
Published: 16 October 2023
Summary
CVE-2023-45577 is a critical-severity Out-of-bounds Write (CWE-787) vulnerability in Dlink Di-7003G Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 8.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
CVE-2023-45577 is a stack-based buffer overflow vulnerability, tracked under CWE-787, that affects multiple D-Link router models including DI-7003GV2.D1 up to v23.08.25D1, DI-7100G+V2.D1 up to v23.08.23D1, DI-7100GV2.D1 v23.08.23D1, DI-7200G+V2.D1 up to v23.08.23D1, DI-7200GV2.E1 up to v23.08.23E1, DI-7300G+V2.D1 v23.08.23D1, and DI-7400G+V2.D1 up to v23.08.23D1. The flaw resides in the H5/speedlimit.data function and is triggered by an unsanitized wanid parameter, enabling out-of-bounds writes on the stack.
An unauthenticated remote attacker can send a crafted HTTP request over the network to the affected device and achieve arbitrary code execution with full system privileges, as reflected in the CVSS 9.8 score indicating no required authentication or user interaction.
Public references consist of technical write-ups on GitHub that demonstrate the issue through proof-of-concept submissions; no vendor advisories or firmware patches are referenced in the available data. The associated EPSS score has remained in a narrow band between 0.0723 and a peak of 0.0815 with no pronounced post-disclosure increase.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-49869
Vulnerability details
Stack Overflow vulnerability in D-Link device DI-7003GV2.D1 v.23.08.25D1 and before, DI-7100G+V2.D1 v.23.08.23D1 and before, DI-7100GV2.D1 v.23.08.23D1, DI-7200G+V2.D1 v.23.08.23D1 and before, DI-7200GV2.E1 v.23.08.23E1 and before, DI-7300G+V2.D1 v.23.08.23D1, and DI-7400G+V2.D1 v.23.08.23D1 and before allows a remote attacker to execute arbitrary code via…
more
the wanid parameter of the H5/speedlimit.data function.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
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.
Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.