HIGH
CVE-2019-12257
CWE-120Published: August 9, 2019· Updated: Jun 17, 2026
8.8
CVSS v3.1
Official Description
Wind River VxWorks 6.6 through 6.9 has a Buffer Overflow in the DHCP client component. There is an IPNET security vulnerability: Heap overflow in DHCP Offer/ACK parsing inside ipdhcpc.
Technical Analysis
CVE-2019-12257 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorAdjacent
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Vendors & Products
belden33 product(s)
hirschmann hioshirschmann ees20hirschmann ees25hirschmann eesx20hirschmann eesx30hirschmann grs1020hirschmann grs1030hirschmann grs1042hirschmann grs1120hirschmann grs1130hirschmann grs1142hirschmann msp30+21
netapp1 product(s)
e-series santricity os controller
siemens10 product(s)
siprotec 5 firmwaresiprotec 5ruggedcom win7000 firmwareruggedcom win7000ruggedcom win7018 firmwareruggedcom win7018ruggedcom win7025 firmwareruggedcom win7025ruggedcom win7200 firmwareruggedcom win7200
sonicwall1 product(s)
sonicos
windriver1 product(s)
vxworks
Source: NVD CPE · 49 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (16)
→
https://cert-portal.siemens.com/productcert/pdf/ssa-189842.pdfThird Party Advisory
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https://cert-portal.siemens.com/productcert/pdf/ssa-632562.pdfThird Party Advisory
→
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0009Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20190802-0001/Third Party Advisory
→
https://support.f5.com/csp/article/K41190253Third Party Advisory
→
https://support2.windriver.com/index.php?page=security-noticesIssue Tracking · Vendor Advisory
→
→
https://cert-portal.siemens.com/productcert/pdf/ssa-189842.pdfThird Party Advisory
→
https://cert-portal.siemens.com/productcert/pdf/ssa-632562.pdfThird Party Advisory
→
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0009Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20190802-0001/Third Party Advisory
→
https://support.f5.com/csp/article/K41190253Third Party Advisory
→
https://support2.windriver.com/index.php?page=security-noticesIssue Tracking · Vendor Advisory
Quick Facts
CVE IDCVE-2019-12257
CVSS Score8.8 / 10
SeverityHIGH
WeaknessCWE-120
CISA KEVNo
Affected5 vendor(s)
PublishedAug 9, 2019
Related CVEs (CWE-120)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2019-12257 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.