CVE-2023-28811Public exploit

Device halt via oversized password-recovery code

Published Nov 23, 2023 · Updated Aug 2, 2024

Buffer overflow in Hikvision NVR/DVR password recovery allows remote attackers on the same LAN to stop affected devices with crafted requests. The email-verification handler accepts an oversized securityCode in PUT /ISAPI/Security/emailCertification without enforcing its buffer limit. No authentication is required; successful exploitation first stops the web server and then halts the recorder host.

CVSS severity7.4

High

EPSS probability0.39%

Next 30 days · Sep 16, 2026

Known exploitationUnconfirmed

Based on sourced intelligence

Hinoki checkNot available

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Summary

What happened

The record

CVE: CVE-2023-28811
Published: Nov 23, 2023
Updated: Aug 2, 2024

Vendor: Hikvision
Product: iDS-72xxHUH-M/E(C)
Classifications: CWE-120, T1499

Attack vector: adjacent
Privileges: unauthenticated

Timeline

How it unfolded

Nov 23, 2023CVE publishedPublication date reported by the CVE source.
Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

Affected versionversion=Build date before 230821(Version before V4.1.60 are not affected)

What conditions does exploitation require?

Attack vectoradjacent

Required privilegesunauthenticated

What is affected?

Hikvision · iDS-72xxHUH-M/E(C)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HL-DVR-1XXG-M(C)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · iDS-72xxHQH-M(E)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HW-HWD-62XXMH-G4version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · iDS-72xxHUH-M/E(E)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HL-NVR-1xxMH-C(C)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · iDS-72xxHQH-M/E(E)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · DS-71xxNI-Q1(D)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HW-HWD-72XXMH-G4version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · DS-76xxNI-K1(C)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · DVR-EXXHUHversion=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · NVR-2xxMH-C(D)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HL-DVR-2XXU-M(E)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · iDS-EXXHQHversion=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HL-DVR-2XXU-M(C)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HL-NVR-1xxMH-D(D)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · DS-EXXHGHversion=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HW-HWN-42xxMH(D)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · iDS-EXXHUHversion=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HW-HWN-21xxMH(D)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HW-HWD-51XXH(S)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · DS-71XXHGH-M(C)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HL-NVR-2xxMH-C(C)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HW-HWD-71XXMH-G4version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · iDS-72xxHQH-M/E(C)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HW-HWD-51XXMH-Gversion=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · iDS-71xxHQH-M(C)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HW-HWD-51XXH-Gversion=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · DS-76xxNI-Q1(C)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · iDS-72xxHUH-M(C)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HW-HWN-41xxMH(D)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · iDS-72xxHQH-M(C)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HL-DVR-2XXG-M(C)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · DS-77xxNI-I4(B)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · DVR-EXXHGHversion=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HW-HWD-61XXMH-G4(E)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · iDS-72xxHUH-M(E)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HW-HWN-41xxMH(C)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · iDS-72xxHTH-M(C)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HL-NVR-1xxMH-D(C)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · DS-76xxNI-Q2(C)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HL-DVR-2XXQ-M(C)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HL-DVR-216Q-K2(E)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HL-DVR-2XXG-K(S)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · NVR-1xxMH-C(D)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · DS-71xxNI-Q1(C)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · iDS-71xxHQH-M(E)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · DS-71XXHGH-K(S)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HW-HWN-42xxMH(C)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · iDS-71xxHUH-M(C)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · iDS-71xxHUH-M(E)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HW-HWD-61XXMH-G4version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · DS-72XXHGH-M(C)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HW-HWN-21xxMH(C)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HL-DVR-1XXG-K(S)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HL-DVR-2XXQ-M(E)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · DVR-EXXHQHversion=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · HW-HWD-71XXMH-G4(E)version=Build date before 230821(Version before V4.1.60 are not affected)

Hikvision · DS-72XXHGH-K(S)version=Build date before 230821(Version before V4.1.60 are not affected)

Published CVSS scores

6.5NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.4HikvisionCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026

Latest reporting daySep 16, 2026

Latest daily unique IPsUnavailable

Prior 30-day averageUnavailable

SourceShadowserver honeypots (KEV)

Vectoradjacent

Privilegesunauthenticated

Known exploitationUnconfirmed

Public exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

T1499Endpoint Denial of Service

Public exploit references

IOActive oversized securityCode proof of conceptproof of concept · demonstrated

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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