CVE-2025-4637

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Source
https://cve.org/CVERecord?id=CVE-2025-4637
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-4637.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-4637
Published
2025-05-14T17:51:41Z
Modified
2026-08-12T15:16:32Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/S:N/AU:Y/R:U/V:D/RE:M/U:Amber CVSS Calculator
Summary
Divide By Zero in dlib
Details

Divide By Zero vulnerability in davisking dlib allows

remote attackers to cause a denial of service via a crafted file.

.This issue affects dlib: before <19.24.7.

Database specific 
{
    "cna_assigner": "GovTech CSG",
    "cwe_ids": [
        "CWE-369"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/4xxx/CVE-2025-4637.json"
}
References

Affected packages

Git / github.com/davisking/dlib

Affected ranges

Type
GIT
Repo
https://github.com/davisking/dlib
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
d3520131a6e0e0fb62bc556b0222b45d99caf905
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "<19.24.7"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

Other
before_dnn_serialization_cleanup
v17.*
v17.39
v17.40
v17.41
v17.42
v17.43
v17.44
v17.45
v17.46
v17.47
v17.48
v17.49
v18.*
v18.0
v18.1
v18.10
v18.11
v18.13
v18.14
v18.15
v18.16
v18.17
v18.2
v18.3
v18.5
v18.6
v18.7
v18.8
v18.9
v19.*
v19.0
v19.1
v19.10
v19.11
v19.12
v19.13
v19.14
v19.15
v19.16
v19.17
v19.18
v19.19
v19.2
v19.20
v19.21
v19.22
v19.23
v19.24
v19.24.2
v19.24.3
v19.24.4
v19.24.5
v19.24.6
v19.3
v19.4
v19.5
v19.6
v19.7
v19.8
v19.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-4637.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "251525035850748163704884515424787085222",
                "211824620735229762740307118992195541003",
                "293271418580817699955126967276983120847",
                "26620686283558538696934275935257694397"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2025-4637-16fab9d9",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/davisking/dlib/commit/d3520131a6e0e0fb62bc556b0222b45d99caf905",
        "target": {
            "file": "dlib/serialize.h"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "186570859467469337541474623080110288327",
                "315490352290462712377902813751347476351",
                "88663287399133854283129400369494530089",
                "300811556964532200184459073794639651275"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2025-4637-8bb04856",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/davisking/dlib/commit/d3520131a6e0e0fb62bc556b0222b45d99caf905",
        "target": {
            "file": "dlib/unicode/unicode.h"
        }
    }
]
vanir_signatures_modified 
"2026-08-12T15:16:32Z"