CVE-2023-45578
Memory Safety in Dlink Di-7003G Firmware ≤ 23.08.25d1
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2023-45578 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, exploitation aligns with the MITRE ATT&CK technique Security Account Manager (T1003.002); ranked in the top 31% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
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 buffer overflow vulnerability affects multiple D-Link router models, including DI-7003GV2.D1 versions 23.08.25D1 and earlier, DI-7100G+V2.D1 versions 23.08.23D1 and earlier, DI-7100GV2.D1 v.23.08.23D1, DI-7200G+V2.D1 versions 23.08.23D1 and earlier, DI-7200GV2.E1 versions 23.08.23E1 and earlier, DI-7300G+V2.D1 v.23.08.23D1, and DI-7400G+V2.D1 versions 23.08.23D1 and earlier. The flaw, tracked as CWE-787, resides in the pppoe_base.asp function and is triggered by the pap_en or chap_en parameter, permitting an out-of-bounds write.
Remote attackers without authentication can exploit the issue over the network to execute arbitrary code on affected devices. The vulnerability carries a CVSS 3.1 score of 9.8, reflecting critical impact across confidentiality, integrity, and availability.
Public references consist of GitHub submissions that document the bug but contain no official advisories, patch information, or mitigation guidance. The associated EPSS score shows only minor movement between a current value of 0.0810 and a peak of 0.0912.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-49870
Vulnerability Data
Buffer 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…
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the pap_en/chap_en parameter of the pppoe_base.asp function.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
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.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Vulnerability scanning and recording can discover out-of-bounds write flaws so they can be remediated.
Patching or replacing vulnerable software directly eliminates known instances of this coding weakness.
Secure-development practices (static analysis, bounds checking, code review) are the primary means of preventing out-of-bounds writes.
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.