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Critical 9.1Published Feb 23, 2023

CVE-2023-23914A cleartext transmission of sensitive information vulnerability exists in curl <v7.88.0 that could cause HSTS functionality fail when multiple URLs are requested serially.

Updated under an hour ago ()

Does this affect you?

It affects Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP and 10 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

A cleartext transmission of sensitive information vulnerability exists in curl <v7.88.0 that could cause HSTS functionality fail when multiple URLs are requested serially. Using its HSTS support, curl can be instructed to use HTTPS instead of usingan insecure clear-text HTTP step even when HTTP is provided in the URL. ThisHSTS mechanism would however surprisingly be ignored by subsequent transferswhen done on the same command line because the state would not be properlycarried on.

CVSS
9.1 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness (CWE)
CWE-319
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
hackerone
NVD analysis
Modified
Record last updated
Oct 14, 2026
First seen by InfoSec Signals
Oct 14, 2026

Affected products

Affected products
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP
siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name)
from V3.1.0 before V3.1.5
CISA ADP
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name)
from V3.1.0 before V3.1.5
CISA ADP
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP
siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name)
from V3.1.0 before V3.1.5
CISA ADP
haxx curl
haxx:curl
from 7.77.0 before 7.88.0
NVD
netapp active_iq_unified_manager
netapp:active_iq_unified_manager
all versions
NVD
netapp clustered_data_ontap
netapp:clustered_data_ontap
9.0
NVD
netapp h300s_firmware
netapp:h300s_firmware
all versions
NVD
netapp h500s_firmware
netapp:h500s_firmware
all versions
NVD
netapp h700s_firmware
netapp:h700s_firmware
all versions
NVD
netapp h410s_firmware
netapp:h410s_firmware
all versions
NVD
splunk universal_forwarder
splunk:universal_forwarder
from 8.2.0 before 8.2.12; from 9.0.0 before 9.0.6; 9.1.0
NVD

References

  • exploit, issue-tracking
  • third-party-advisory
  • vendor-advisory, third-party-advisory

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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