How severe is CVE-2020-1948?

CVE-2020-1948 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-1948 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-1948?

CVE-2020-1948 affects Apache Dubbo. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-1948?

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-2020-1948 published?

CVE-2020-1948 was published on 2020-07-14 and last updated on 2026-06-17.

CVE-2020-1948

CVE-2020-1948 is a critical-severity vulnerability in Apache Dubbo with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 14% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-502.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 14% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Apache Dubbo
Published: 2020-07-14
Last modified: 2026-06-17

Description

This vulnerability can affect all Dubbo users stay on version 2.7.6 or lower. An attacker can send RPC requests with unrecognized service name or method name along with some malicious parameter payloads. When the malicious parameter is deserialized, it will execute some malicious code. More details can be found below.

Frequently asked questions

What is CVE-2020-1948?: This vulnerability can affect all Dubbo users stay on version 2.7.6 or lower. An attacker can send RPC requests with unrecognized service name or method name along with some malicious parameter payloads. When the malicious parameter is deserialized, it will execute some malicious code. More details can be found below.
How severe is CVE-2020-1948?: CVE-2020-1948 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-1948 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-1948?: CVE-2020-1948 affects Apache Dubbo. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-1948?: 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-2020-1948 published?: CVE-2020-1948 was published on 2020-07-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:apache:dubbo:*:*:*:*:*:*:*:*

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