How severe is CVE-2021-35234?

CVE-2021-35234 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over an adjacent network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-35234 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-35234?

CVE-2021-35234 primarily affects Solarwinds Orion Platform. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-35234?

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.

When was CVE-2021-35234 published?

CVE-2021-35234 was published on 2021-12-20 and last updated on 2026-06-17.

CVE-2021-35234

CVE-2021-35234 is a high-severity vulnerability in Solarwinds Orion Platform with a CVSS 3.x base score of 8.0. 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-89.

Key facts

Severity: High (CVSS 3.x base score 8.0)
CVSS v2: 6.5
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Solarwinds Orion Platform
Published: 2021-12-20
Last modified: 2026-06-17

Description

Numerous exposed dangerous functions within Orion Core has allows for read-only SQL injection leading to privileged escalation. An attacker with low-user privileges may steal password hashes and password salt information.

Frequently asked questions

What is CVE-2021-35234?: Numerous exposed dangerous functions within Orion Core has allows for read-only SQL injection leading to privileged escalation. An attacker with low-user privileges may steal password hashes and password salt information.
How severe is CVE-2021-35234?: CVE-2021-35234 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over an adjacent network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-35234 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-35234?: CVE-2021-35234 primarily affects Solarwinds Orion Platform. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-35234?: 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.
When was CVE-2021-35234 published?: CVE-2021-35234 was published on 2021-12-20 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:solarwinds:orion_platform:*:*:*:*:*:*:*:*
cpe:2.3:a:solarwinds:orion_platform:2020.2.6:-:*:*:*:*:*:*
cpe:2.3:a:solarwinds:orion_platform:2020.2.6:hotfix1:*:*:*:*:*:*
cpe:2.3:a:solarwinds:orion_platform:2020.2.6:hotfix2:*:*:*:*:*:*

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CVE-2021-27258 — Critical (CVSS 9.8): This vulnerability allows remote attackers to execute escalate privileges on affected installations of SolarWinds Orion…
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