CVE-2021-42956

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.8 under NVD CVSS v3. EPSS exploit probability: 0.6%, top 53% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Zoho Remote Access Plus Server Windows Desktop Binary fixed in 10.1.2132.6 is affected by a sensitive information disclosure vulnerability. Due to improper privilege management, the process launches as the logged in user, so memory dump can be done by non-admin also. Remotely, an attacker can dump all sensitive information including DB Connection string, entire IT infrastructure details, commands executed by IT admin including credentials, secrets, private keys and more.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity78% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
47.0%
KEV
Not listed

Published

November 17, 2021

Last Modified

November 21, 2024

References (2)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 47× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 106 total refreshes for this CVE.

  1. 2026-07-24 14:15 UTCEPSS rescore
  2. 2026-07-23 14:16 UTCEPSS rescore
  3. 2026-07-23 02:04 UTCEG score recompute
  4. 2026-07-22 22:51 UTCEG score recompute
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Frequently asked(5)

What is CVE-2021-42956?
CVE-2021-42956 is a high vulnerability published on November 17, 2021. Zoho Remote Access Plus Server Windows Desktop Binary fixed in 10.1.2132.6 is affected by a sensitive information disclosure vulnerability. Due to improper privilege management, the process launches as the logged in user, so memory dump can be done by non-admin also. Remotely, an attacker can dump…
When was CVE-2021-42956 disclosed?
CVE-2021-42956 was first published in the National Vulnerability Database on November 17, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-42956 actively exploited?
CVE-2021-42956 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 47.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2021-42956?
CVE-2021-42956 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2021-42956?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-42956, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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