LOW
CVE-2021-34563
CWE-1004Published: August 31, 2021· Updated: Jun 17, 2026
3.3
CVSS v3.1
Official Description
In PEPPERL+FUCHS WirelessHART-Gateway 3.0.8 and 3.0.9 the HttpOnly attribute is not set on a cookie. This allows the cookie's value to be read or set by client-side JavaScript.
Technical Analysis
CVE-2021-34563 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Affected Vendors & Products
pepperl-fuchs4 product(s)
wha-gw-f2d2-0-as-z2-eth firmwarewha-gw-f2d2-0-as-z2-ethwha-gw-f2d2-0-as-z2-eth.eip firmwarewha-gw-f2d2-0-as-z2-eth.eip
Source: NVD CPE · 6 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 (2)
→
https://cert.vde.com/en-us/advisories/vde-2021-027Third Party Advisory
→
https://cert.vde.com/en-us/advisories/vde-2021-027Third Party Advisory
Quick Facts
CVE IDCVE-2021-34563
CVSS Score3.3 / 10
SeverityLOW
WeaknessCWE-1004
CISA KEVNo
Affected1 vendor(s)
PublishedAug 31, 2021
Related CVEs (CWE-1004)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2021-34563 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.