SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-3164

Server Side Request Forgery in Apache Solr, versions 1.3 until 7.6 (inclusive).

HIGH 7.5EPSS 19.4%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 19.4%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

Description

Server Side Request Forgery in Apache Solr, versions 1.3 until 7.6 (inclusive). Since the "shards" parameter does not have a corresponding whitelist mechanism, a remote attacker with access to the server could make Solr perform an HTTP GET request to any reachable URL.

CVSS 3.0
7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
19.44% probability · 97th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-918
Affected
apache/solr
Source
security@apache.org
EPSS trend
0%10%20%21 September 2026: 18.44%22 September 2026: 19.44%27 October 2026: 19.44%21 September 202627 October 2026

EPSS moved from 18.4% on 21 September 2026 to 19.4% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.