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Medium 5.0Published Mar 31, 2003

CVE-2003-0147OpenSSL does not use RSA blinding by default, which allows local and remote attackers to obtain the server's private key by determining factors using timing differences on (1) the number of extra red…

Updated under an hour ago ()

Does this affect you?

It affects openpkg and 2 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

OpenSSL does not use RSA blinding by default, which allows local and remote attackers to obtain the server's private key by determining factors using timing differences on (1) the number of extra reductions during Montgomery reduction, and (2) the use of different integer multiplication algorithms ("Karatsuba" and normal).

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CVSS
5.0 MEDIUM (v2.0, NVD)AV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness (CWE)
Not given
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Not given
NVD analysis
Modified
Record last updated
Jun 16, 2026
First seen by InfoSec Signals
Nov 1, 2026

Affected products

Affected products
openpkg openpkg
openpkg:openpkg
all versions; 1.1; 1.2
NVD
openssl openssl
openssl:openssl
0.9.6; 0.9.6a; 0.9.6b; 0.9.6c; 0.9.6d; 0.9.6e; 0.9.6g; 0.9.6h; and 3 more ranges
NVD
stunnel stunnel
stunnel:stunnel
3.7; 3.8; 3.9; 3.10; 3.11; 3.12; 3.13; 3.14; and 13 more ranges
NVD

References

References

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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