Squid: denial of service in ftp
Published Nov 3, 2023
8.6
HIGHCVSS 3.1
EPSS 10.22%
Description
Squid is vulnerable to Denial of Service, where a remote attacker can perform DoS by sending ftp:// URLs in HTTP Request messages or constructing ftp:// URLs from FTP Native input.
Affected products
No data.
Configuration 1
- ≥ 5.0.3 · < 6.4
Configuration 2
- 9.0
- 9.2
- 9.2
- 9.2
No data.
Red Hat Enterprise Linux 9
squid-7:5.5-5.el9_2.1
Fixed · RHSA-2023:6266
Red Hat Enterprise Linux 9
squid-7:5.5-6.el9_3.1
Fixed · RHSA-2023:6748
Red Hat Enterprise Linux 9.0 Extended Update Support
squid-7:5.2-1.el9_0.3
Fixed · RHSA-2023:6268
Red Hat Enterprise Linux 6
squid
Not affected
Red Hat Enterprise Linux 7
squid
Not affected
Red Hat Enterprise Linux 8
squid:4/squid
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 9 | squid-7:5.5-5.el9_2.1 | Fixed | RHSA-2023:6266 |
| Red Hat Enterprise Linux 9 | squid-7:5.5-6.el9_3.1 | Fixed | RHSA-2023:6748 |
| Red Hat Enterprise Linux 9.0 Extended Update Support | squid-7:5.2-1.el9_0.3 | Fixed | RHSA-2023:6268 |
| Red Hat Enterprise Linux 6 | squid | Not affected | n/a |
| Red Hat Enterprise Linux 7 | squid | Not affected | n/a |
| Red Hat Enterprise Linux 8 | squid:4/squid | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2023–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (24 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 10.22% (0.10221) | 95.54th | v5 (v2026.06.15) |
| Jun 15, 2026 | 10.22% (0.10221) | 95.06th | v5 (v2026.06.15) |
| Apr 18, 2026 | 7.19% (0.07190) | 91.61th | v4 (v2025.03.14) |
| Dec 28, 2025 | 10.38% (0.10385) | 92.96th | v4 (v2025.03.14) |
| Dec 27, 2025 | 13.89% (0.13894) | 94.13th | v4 (v2025.03.14) |
| Dec 24, 2025 | 10.38% (0.10385) | 92.96th | v4 (v2025.03.14) |
| Nov 28, 2025 | 8.44% (0.08438) | 91.97th | v4 (v2025.03.14) |
| Nov 23, 2025 | 7.18% (0.07181) | 91.21th | v4 (v2025.03.14) |
| Nov 21, 2025 | 8.23% (0.08233) | 91.86th | v4 (v2025.03.14) |
| Nov 18, 2025 | 37.12% (0.37116) | 96.97th | v4 (v2025.03.14) |
| Oct 28, 2025 | 8.23% (0.08233) | 91.82th | v4 (v2025.03.14) |
| Oct 27, 2025 | 11.13% (0.11128) | 93.17th | v4 (v2025.03.14) |
| Oct 1, 2025 | 8.23% (0.08233) | 91.93th | v4 (v2025.03.14) |
| Jul 30, 2025 | 11.09% (0.11086) | 93.16th | v4 (v2025.03.14) |
| Apr 18, 2025 | 8.20% (0.08200) | 91.71th | v4 (v2025.03.14) |
| Apr 15, 2025 | 7.16% (0.07162) | 91.03th | v4 (v2025.03.14) |
| Mar 30, 2025 | 37.12% (0.37116) | 96.84th | v4 (v2025.03.14) |
| Mar 29, 2025 | 47.01% (0.47014) | 96.59th | v4 (v2025.03.14) |
| Mar 17, 2025 | 37.12% (0.37116) | 96.81th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.66% (0.01657) | 88.11th | v3 (v2023.03.01) |
| Dec 15, 2023 | 1.36% (0.01357) | 84.69th | v3 (v2023.03.01) |
| Nov 14, 2023 | 0.88% (0.00882) | 80.64th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.09% (0.00089) | 37.26th | v3 (v2023.03.01) |
| Nov 3, 2023 | 0.08% (0.00079) | 33.52th | v3 (v2023.03.01) |
References (9)
- https://access.redhat.com/errata/RHSA-2023:6266 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2023:6268 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2023:6748 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2023-46848 vdb-entryx_refsource_REDHATThird Party AdvisoryVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2245919 issue-trackingx_refsource_REDHATIssue Tracking
- https://github.com/squid-cache/squid/security/advisories/GHSA-2g3c-pg7q-g59w Vendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2023-46848
- https://security.netapp.com/advisory/ntap-20231214-0005/
- https://www.cve.org/CVERecord?id=CVE-2023-46848
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2023:6266 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2023:6268 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2023:6748 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2023-46848 | vdb-entryx_refsource_REDHATThird Party AdvisoryVendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2245919 | issue-trackingx_refsource_REDHATIssue Tracking | |
| https://github.com/squid-cache/squid/security/advisories/GHSA-2g3c-pg7q-g59w | Vendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2023-46848 | ||
| https://security.netapp.com/advisory/ntap-20231214-0005/ | ||
| https://www.cve.org/CVERecord?id=CVE-2023-46848 |
Change history (0)
No recorded changes yet.