CVE-2016-2147

mediumpriority · track · 33EPSS 0.078 · 95 %ileDEEURUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
7.80% (95th) EPSS
CVSS 5 · medium
Is it mine?
27 products
Check your exposure
Who says so?
6 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

Integer overflow in the DHCP client (udhcpc) in BusyBox before 1.25.0 allows remote attackers to cause a denial of service (crash) via a malformed RFC1035-encoded domain name, which triggers an out-of-bounds heap write.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • Fixedwago_psirt

    Update your managed switch to the latest firmware: 852-303 (>= V1.2.2.S0) 852-1305 (>= V1.1.6.S0) 852-1505 (>= V1.1.5.S0) Firmwares published on Jun 7, 2019 or later are fixed. Please refer to the corresponding manual.

02

cvss

Technical severity, 0–10. One row per scoring source.

7.5
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6
v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · WAGO PSIRT DE
v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-190USprimaryCWE-190USCWE-190US
04

affected products (27)

Products and version ranges known to be affected.

showing 20 of 27
05

advisories (2)

Vendor and ecosystem advisories describing this.

  • VDE-2019-013WAGO: Multiple Vulnerabilities in industrial managed switches2019-06-12csaf · wago_psirtDE

    Multiple vulnerabilities have been identified in WAGO 852-303, 852-1305 and 852-1505 industrial managed ethernet switches.

  • WID-SEC-W-2022-2031BusyBox: Mehrere SchwachstellenDeutsch2016-12-05csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in BusyBox ausnutzen, um beliebigen Programmcode mit den Rechten des Dienstes auszuführen oder um einen Denial of Service Zustand herbeizuführen.

06

also known as (4)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundnvdwago_psirtNVDCVE.orgMITRE
published 2017-02-09modified 2026-09-09
09

references (49)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan