There is a Buffer overflow Vulnerability in the device Search and Discovery feature of Hikvision Access Control Products.
There is a Buffer overflow Vulnerability in the device Search and Discovery feature of Hikvision Access Control Products. If exploited, an attacker on the same local area network (LAN) could cause the device to malfunction by sending specially crafted packets to an unpatched device.
- Published
- Jan 12, 2026
- Updated
- Jul 9, 2026
- EPSS
- 0.5% · 39th percentile
- CWE
- CWE-121
Sign in to follow · You’ll be notified if a followed record enters KEV, gets an exploit or is updated.
Report tools
Action score
35
Monitor
Low priority for now.
- CVSS
- 35 / 40 · 8.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.5%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- —
- CNA · hikvision
- 8.8
- NVD has not scored this yet; the score shown is the CNA’s.
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpAffected systems
| Vendor | Product | CPE |
|---|---|---|
| hikvision | ds-k1t331 firmware | cpe:2.3:o:hikvision:ds-k1t331_firmware |
| hikvision | ds-k1t331 | cpe:2.3:h:hikvision:ds-k1t331 |
| hikvision | ds-k1t341a firmware | cpe:2.3:o:hikvision:ds-k1t341a_firmware |
| hikvision | ds-k1t341a | cpe:2.3:h:hikvision:ds-k1t341a |
| hikvision | ds-k1t341b firmware | cpe:2.3:o:hikvision:ds-k1t341b_firmware |
| hikvision | ds-k1t341b | cpe:2.3:h:hikvision:ds-k1t341b |
| hikvision | ds-k1t671 firmware | cpe:2.3:o:hikvision:ds-k1t671_firmware |
| hikvision | ds-k1t671 | cpe:2.3:h:hikvision:ds-k1t671 |
| hikvision | ds-k5671 firmware | cpe:2.3:o:hikvision:ds-k5671_firmware |
| hikvision | ds-k5671 | cpe:2.3:h:hikvision:ds-k5671 |
| hikvision | ds-k1t672 firmware | cpe:2.3:o:hikvision:ds-k1t672_firmware |
| hikvision | ds-k1t672 | cpe:2.3:h:hikvision:ds-k1t672 |
and 44 more
Using ds-k1t331 firmware? Add it to your stack and be the first to know about CVEs like this one. (IP camera)
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- hikvision ds-k1t105a firmwarebefore 1.3.65
- hikvision ds-k1t201a firmwarebefore 1.3.65
- hikvision ds-k1t320 firmwarebefore 3.9.40
- hikvision ds-k1t321 firmwarebefore 3.9.40
- hikvision ds-k1t323 firmwarebefore 4.23.41
- hikvision ds-k1t331 firmwarebefore 3.7.80
- hikvision ds-k1t341a firmwarebefore 3.7.80
- hikvision ds-k1t341b firmwarebefore 3.7.80
- hikvision ds-k1t341c firmwarebefore 3.3.180
- hikvision ds-k1t342 firmwarebefore 4.48.0
- hikvision ds-k1t343 firmwarebefore 4.48.0
- hikvision ds-k1t344 firmwarebefore 4.48.0
- hikvision ds-k1t510 firmwarebefore 4.23.41
- hikvision ds-k1t670 firmwarebefore 4.48.0
- hikvision ds-k1t671 firmwarebefore 3.7.80
- hikvision ds-k1t672 firmwarebefore 3.7.80
- hikvision ds-k1t673 firmwarebefore 4.48.0
- hikvision ds-k1t680 firmwarebefore 3.7.80
- hikvision ds-k1t6qt-f43 firmwarebefore 4.48.0
- hikvision ds-k1t6qt-f72 firmwarebefore 4.48.0
Versions reported by the vendor
Affected version ranges reported by the assigning authority (hikvision). Independent of NVD's CPE analysis and usually ahead of it.
Hikvision DS-K1T201A/K1T105A
- Versions below V1.3.65affected
Hikvision DS-K1T320/DS-K1T321
- Versions below V3.9.40affected
Hikvision DS-K1T323/DS-K1T510
- Versions below V4.23.41affected
Hikvision DS-K1T331
- Versions below V3.7.80affected
Hikvision DS-K1T341A/K1T341B
- Versions below V3.7.80affected
Hikvision DS-K1T341C
- Versions below V3.3.180affected
Hikvision DS-K1T342/K1T343/K1T344/DS-K1T6QT-F72/F43
- Versions below V4.48.0affected
Hikvision DS-K1T670/K1T673
- Versions below V4.48.0affected
Hikvision DS-K1T671/K5671
- Versions below V3.7.80affected
Hikvision DS-K1T672
- Versions below V3.7.80affected
Hikvision DS-K1T680
- Versions below V3.7.80affected
Hikvision DS-K1T8003
- Versions below V1.4.21affected
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
- Matt WisemanCisco Talosfinder
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Someone on the same network segment can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Adjacent
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-121 · Stack-based Buffer OverflowCVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd-secondary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- www.hikvision.com/en/support/cybersecurity/security-advisory/buffer-overflow-vulnerabilities-in-some-hikvision-products/
- www.talosintelligence.com/vulnerability_reports/TALOS-2025-2281
Vendor advisories and official records. Exploit/PoC links are deliberately left out.