CVE-2022-2928

mediumpriority · track · 0EPSS 0.007 · 53 %ileDEEURUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.71% (53rd) EPSS
CVSS 6.5 · medium
Is it mine?
22 products
Check your exposure
Who says so?
6 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-26

In ISC DHCP 4.4.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1, when the function option_code_hash_lookup() is called from add_option(), it increases the option's refcount field. However, there is not a corresponding call to option_dereference() to decrement the refcount field. The function add_option() is only used in server responses to lease query packets. Each lease query response calls this function for several options, so eventually, the reference counters could overflow and cause the server to abort.

01

cvss

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

6.5
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.5mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · NVD / NIST USexploitability 2.8 · impact 3.6
v3.16.5mediumAV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU
v3.16.5mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU
v3.16.5mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · security-officer@isc.orgexploitability 2.8 · impact 3.6
v3.16.5mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · SICK PSIRT DE
02

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-476USprimaryCWE-476USCWE-476US
03

affected products (22)

Products and version ranges known to be affected.

showing 20 of 22
04

advisories (4)

Vendor and ecosystem advisories describing this.

  • SCA-2025-0009Vulnerabilities affecting SICK TDC-E210GC2025-08-01csaf · sick_psirtDE

    SICK has identified multiple vulnerabilities in the SICK TDC-E210GC product. The advisory includes a total of 23 vulnerabilities, of which 14 are confirmed as affected and 9 as known not affected. At this time, SICK is not aware of any public exploits specifically targeting these vulnerabilities. Customers are strongly advised to apply the recommended workaround for the affected vulnerabilities to reduce potential risk.

  • SCA-2025-0011Vulnerabilities affecting Endress+Hauser SSG-E210GC2025-10-02csaf · sick_psirtDE

    Several vulnerabilities in the Endress+Hauser SSG-E210GC product were discoverd. The advisory includes a total of 23 vulnerabilities, of which 14 are confirmed as affected and 9 as known not affected.

  • WID-SEC-W-2022-1634Internet Systems Consortium DHCP: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2022-10-05csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Internet Systems Consortium DHCP ausnutzen, um einen Denial of Service Angriff durchzuführen.

  • WID-SEC-W-2023-1424Xerox FreeFlow Print Server für Solaris: Mehrere SchwachstellenDeutsch2023-06-12csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Xerox FreeFlow Print Server ausnutzen, um die Vertraulichkeit, Verfügbarkeit und Integrität des Systems zu gefährden.

05

also known as (4)

Other names and identifiers for this entity.

06

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundnvdsick_psirtNVDCVE.orgMITRE
published 2022-10-07modified 2026-06-17
08

references (28)

External citations — patches, advisories, analysis.

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