How severe is CVE-2018-1000834?

CVE-2018-1000834 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-1000834 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-1000834?

CVE-2018-1000834 affects Runelite. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-1000834?

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

When was CVE-2018-1000834 published?

CVE-2018-1000834 was published on 2018-12-20 and last updated on 2026-06-17.

CVE-2018-1000834

Q: What is CVE-2018-1000834?

runelite version <= runelite-parent-1.4.23 contains a XML External Entity (XXE) vulnerability in Man in the middle runscape services call that can result in Disclosure of confidential data, denial of service, SSRF, port scanning.

CVE-2018-1000834 is a critical-severity vulnerability in Runelite with a CVSS 3.x base score of 9.0. 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-611.

Key facts

Severity: Critical (CVSS 3.x base score 9.0)
CVSS v2: 6.8
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-611
Affected product: Runelite
Published: 2018-12-20
Last modified: 2026-06-17

Description

runelite version <= runelite-parent-1.4.23 contains a XML External Entity (XXE) vulnerability in Man in the middle runscape services call that can result in Disclosure of confidential data, denial of service, SSRF, port scanning.

Frequently asked questions

What is CVE-2018-1000834?: runelite version <= runelite-parent-1.4.23 contains a XML External Entity (XXE) vulnerability in Man in the middle runscape services call that can result in Disclosure of confidential data, denial of service, SSRF, port scanning.
How severe is CVE-2018-1000834?: CVE-2018-1000834 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-1000834 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-1000834?: CVE-2018-1000834 affects Runelite. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-1000834?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-1000834 published?: CVE-2018-1000834 was published on 2018-12-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:runelite:runelite:*:*:*:*:*:*:*:*

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