How severe is CVE-2026-26234?

CVE-2026-26234 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-26234 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-26234?

CVE-2026-26234 affects Jung-group Smart Visu Server Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-26234?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-26234 have an EU (EUVD) identifier?

Yes. CVE-2026-26234 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7028.

When was CVE-2026-26234 published?

CVE-2026-26234 was published on 2026-02-12 and last updated on 2026-06-17.

CVE-2026-26234

CVE-2026-26234 is a high-severity vulnerability in Jung-group Smart Visu Server Firmware with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-644.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 8.7
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-7028
Weakness: CWE-644
Affected product: Jung-group Smart Visu Server Firmware
Published: 2026-02-12
Last modified: 2026-06-17

Description

JUNG Smart Visu Server 1.1.1050 contains a request header manipulation vulnerability that allows unauthenticated attackers to override request URLs by injecting arbitrary values in the X-Forwarded-Host header. Attackers can manipulate proxied requests to generate tainted responses, enabling cache poisoning, potential phishing, and redirecting users to malicious domains.

Frequently asked questions

What is CVE-2026-26234?: JUNG Smart Visu Server 1.1.1050 contains a request header manipulation vulnerability that allows unauthenticated attackers to override request URLs by injecting arbitrary values in the X-Forwarded-Host header. Attackers can manipulate proxied requests to generate tainted responses, enabling cache poisoning, potential phishing, and redirecting users to malicious domains.
How severe is CVE-2026-26234?: CVE-2026-26234 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-26234 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-26234?: CVE-2026-26234 affects Jung-group Smart Visu Server Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-26234?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-26234 have an EU (EUVD) identifier?: Yes. CVE-2026-26234 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7028.
When was CVE-2026-26234 published?: CVE-2026-26234 was published on 2026-02-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:jung-group:smart_visu_server_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Jung-group Smart Visu Server Firmware

CVE-2026-26235 — High (CVSS 7.5): JUNG Smart Visu Server 1.1.1050 contains a denial of service vulnerability that allows unauthenticated attackers to…
CVE-2017-20082 — Medium (CVSS 5.5): A vulnerability, which was classified as problematic, has been found in JUNG Smart Visu Server 1.0.804/1.0.830/1.0.832.…
CVE-2017-20084 — Medium (CVSS 5.3): A vulnerability has been found in JUNG Smart Visu Server 1.0.804/1.0.830/1.0.832 and classified as critical. Affected…
CVE-2017-20083 — Medium (CVSS 5.3): A vulnerability, which was classified as critical, was found in JUNG Smart Visu Server 1.0.804/1.0.830/1.0.832.…

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