CWE-203: CWE-203

94
Total CVEs
9
Critical
38
High
6.5
Avg CVSS

Yearly Trend

2026
7
2025
31
2024
35
2023
10
2022
4

Top Affected Vendors

1 Google 7
2 Debian 5
3 Fedoraproject 4
4 Liferay 3
5 Linux 3
6 Microsoft 3
7 Oracle 3
8 Honor 3
9 Ibm 2
10 Monospace 2

All CWE-203 CVEs (94)

CVE-2024-30171
5.9

This vulnerability in Bouncy Castle's Java TLS implementation allows timing-based side-channel attacks during RSA handshakes. Attackers can potentiall...

May 14, 2024
CVE-2025-21336
5.6

This Windows cryptographic vulnerability allows attackers to disclose sensitive information from memory. It affects Windows systems with cryptographic...

Jan 14, 2025
CVE-2024-43546
5.6

This Windows vulnerability allows attackers to obtain cryptographic information that could help them decrypt protected data or bypass security mechani...

Oct 8, 2024
CVE-2025-48561
5.5

This CVE describes a side-channel information disclosure vulnerability in Android that allows local attackers to access screen-displayed data without ...

Sep 4, 2025
CVE-2024-47154
5.5

This CVE describes an information leak vulnerability affecting certain Honor products. Successful exploitation could allow unauthorized access to sens...

Dec 26, 2024
CVE-2024-54476
5.5

This macOS vulnerability allows applications to access sensitive user data they shouldn't have permission to view. It affects users running vulnerable...

Dec 12, 2024
CVE-2020-10369
5.5

CVE-2020-10369 is a side-channel vulnerability in certain Cypress/Broadcom wireless chips that allows attackers to infer memory content via a 'Spectra...

Nov 10, 2024
CVE-2024-47678
5.5

This CVE addresses a side-channel vulnerability in the Linux kernel's ICMP rate limiting implementation. The vulnerability could allow attackers to in...

Oct 21, 2024
CVE-2022-48730
5.5

This CVE-2022-48730 is a Spectre v1 vulnerability in the Linux kernel's DMA-BUF heaps subsystem where user-supplied input could be used as an array in...

Jun 20, 2024
CVE-2024-32926
5.5

CVE-2024-32926 is a side-channel information disclosure vulnerability in Android Pixel devices that could allow local attackers to access sensitive in...

Jun 13, 2024
CVE-2026-26185
5.3

This timing-based user enumeration vulnerability in Directus allows attackers to determine whether specific usernames/emails exist in the system by me...

Feb 12, 2026
CVE-2026-21484
5.3

This vulnerability in AnythingLLM allows attackers to determine whether specific usernames exist in the system by observing different error messages f...

Jan 3, 2026
CVE-2024-55374
5.3

REDCap 14.3.13 has a username enumeration vulnerability where attackers can distinguish between valid and invalid usernames based on response time dif...

Jan 2, 2026
CVE-2023-53943
5.3

CVE-2023-53943 is a username enumeration vulnerability in GLPI's password recovery mechanism that allows attackers to determine valid user email addre...

Dec 18, 2025
CVE-2025-39665
5.3

CVE-2025-39665 is an information disclosure vulnerability in Nagvis' Checkmk MultisiteAuth plugin that allows unauthenticated attackers to enumerate v...

Dec 3, 2025
CVE-2025-56423
5.3

This vulnerability in OpenAtlas v8.12.0 allows remote attackers to enumerate valid usernames through login error messages. Attackers can determine whi...

Nov 24, 2025
CVE-2025-54477
5.3

This vulnerability allows attackers to enumerate valid usernames in Joomla's passkey authentication system by observing differences in authentication ...

Sep 30, 2025
CVE-2025-43751
5.3

This vulnerability allows remote attackers to determine if user accounts exist in Liferay Portal/DXP by exploiting the create account page. Attackers ...

Aug 22, 2025
CVE-2023-38327
5.3

This CVE describes a user enumeration vulnerability in eGroupWare's calendar/freebusy.php endpoint. Unauthenticated remote attackers can determine val...

Jul 11, 2025
CVE-2025-52576
5.3

This vulnerability in Kanboard allows attackers to enumerate valid usernames and bypass IP-based brute-force protection mechanisms. By analyzing login...

Jun 25, 2025
CVE-2021-47664
5.3

CVE-2021-47664 allows unauthenticated remote attackers to enumerate valid usernames due to improper authentication mechanisms. This affects systems wi...

Apr 24, 2025
CVE-2023-37482
5.3

This vulnerability allows unauthenticated remote attackers to determine valid usernames on affected Siemens devices by analyzing login response time d...

Feb 11, 2025
CVE-2024-54002
5.3

This vulnerability allows attackers to enumerate valid usernames in Dependency-Track by measuring response time differences during login attempts. Onl...

Dec 4, 2024
CVE-2020-26062
5.3

This vulnerability in Cisco Integrated Management Controller (IMC) allows unauthenticated remote attackers to enumerate valid usernames by analyzing d...

Nov 18, 2024
CVE-2024-9398
5.3

This vulnerability allows attackers to detect whether specific protocol handler applications are installed on a user's system by exploiting how Firefo...

Oct 1, 2024
CVE-2024-23984
5.3

This vulnerability in Intel processors' RAPL (Running Average Power Limit) interface allows a privileged user to potentially disclose information thro...

Sep 16, 2024
CVE-2024-34336
5.3

This vulnerability allows attackers to determine whether specific user accounts exist in ORDAT FOSS-Online by analyzing differences in server response...

Sep 12, 2024
CVE-2024-41952
5.3

This vulnerability in Zitadel identity management system allows attackers to enumerate valid usernames when the 'Ignoring unknown usernames' security ...

Jul 31, 2024
CVE-2024-41880
5.3

This vulnerability in Veilid's veilid-core allows attackers to misuse the ping function to degrade the effectiveness of safety and private routes. Thi...

Jul 22, 2024
CVE-2024-31878
5.3

IBM i Service Tools Server (SST) versions 7.2 through 7.5 are vulnerable to user enumeration by remote attackers. This allows malicious actors to iden...

Jun 7, 2024
CVE-2024-7881
5.1

CVE-2024-7881 is a speculative execution vulnerability in certain Arm CPUs where unprivileged code can trigger the data memory-dependent prefetcher to...

Jan 28, 2025
CVE-2026-23620
4.3

GFI MailEssentials AI versions before 22.4 contain an authenticated file enumeration vulnerability. An authenticated attacker can check whether arbitr...

Feb 19, 2026
CVE-2025-64749
4.3

This CVE describes an information disclosure vulnerability in Directus where unauthorized users can determine whether specific database collections ex...

Nov 13, 2025
CVE-2025-36225
4.3

IBM Aspera versions 5.0.0 through 5.0.13.1 contain an information disclosure vulnerability where authenticated users can access sensitive system infor...

Oct 9, 2025
CVE-2025-9031
4.3

This CVE describes an Observable Timing Discrepancy vulnerability in DivvyDrive Web that allows attackers to perform cross-domain search timing attack...

Sep 24, 2025
CVE-2025-43743
4.3

This vulnerability in Liferay Portal and DXP allows any authenticated user to enumerate other users' names by viewing their calendars. This informatio...

Aug 19, 2025
CVE-2025-43739
4.3

This vulnerability allows any authenticated user in Liferay Portal/DXP to modify email content sent through the calendar portlet, enabling phishing at...

Aug 19, 2025
CVE-2025-23182
4.3

CVE-2025-23182 is an observable discrepancy vulnerability (CWE-203) that allows attackers to infer sensitive information through timing differences or...

May 22, 2025
CVE-2024-21233
4.3

This vulnerability allows low-privileged attackers with network access and Create Session privilege to modify data in Oracle Database Core. It affects...

Oct 15, 2024
CVE-2024-45678
4.2

This vulnerability allows attackers with physical access and specialized electromagnetic equipment to extract ECDSA secret keys from YubiKey 5 Series ...

Sep 3, 2024
CVE-2024-8992
4.0

This CVE describes an information leak vulnerability affecting certain Honor products. Successful exploitation could allow unauthorized access to sens...

Dec 26, 2024
CVE-2025-65185
2.8

This vulnerability in Entrinsik Informer v5.10.1 allows attackers to enumerate valid usernames by analyzing application responses during OTP and passw...

Dec 17, 2025
CVE-2025-68164
2.7

This vulnerability in JetBrains TeamCity allows attackers to enumerate open ports on the server when testing Perforce connections. It affects organiza...

Dec 16, 2025
CVE-2026-25562
N/A

WeKan versions before 8.19 have an information disclosure vulnerability where attachment metadata can be accessed by unauthorized users. This occurs b...

Feb 7, 2026

About CWE-203 (CWE-203)

Our database tracks 94 CVEs classified as CWE-203, with 9 rated critical and 38 rated high severity. The average CVSS score for CWE-203 vulnerabilities is 6.5.

External reference: View CWE-203 on MITRE CWE →

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