Fellipe Weno

fweno.onefour.com.br

Current Conditions

São Paulo
céu limpo

25 ℃

60%

Temperatura

Umidade

Fonte: OpenWeatherMap. - 20:30:01

[USD] USD 80,201.85

[BRL] BRL 394,127.92 [USD] USD 80,201.85 [GBP] GBP 58,829.18 [EUR] EUR 68,008.12
Price index provided by blockchain.info.
After Bitcoin Core 0.14.0 and before Bitcoin Core 29.0, validating a specially-crafted block may cause the node to access previously freed memory.
During validation, necessary data required for checking inputs for each transaction is pre-calculated and cached. For specially crafted invalid blocks, it was possible for this data to be destroyed while it was still being accessed by a background validation thread. An attacker capable of mining a block with sufficient proof-of-work could have exploited this to crash victim nodes. Because of the nature of use-after-free bugs, it is possible that the crash could have been used for remote code execution, though constraints on the input (block) data make this unlikely.
This issue is considered High severity.

Details
By default, script validation for new blocks is dispatched to background threads via a vector of CScriptCheck functors. Each CScriptCheck holds a pointer to a PrecomputedTransactionData object which stores some data needed by each input in the transaction. Because it stores a pointer and not the data itself, care must be taken to ensure that the PrecomputedTransactionData outlives the CScriptCheck.
The script checks lifetime is enforced by an RAII class, CCheckQueueControl. However, the control is intantiated before the precomputed transaction data. Because local objects in C++ are destructed in reverse order of construction, this means the vector of PrecomputedTransactionData is destroyed before the CCheckQueueControl.
This is not an issue when the block is valid, as CCheckQueueControl::Wait() will be called before the function returns and the PrecomputedTransactionData gets destroyed. However, in case of an early return (when a separate check fails) a background script thread may read the precomputed transaction data after it was destroyed. An attacker could exploit this to crash victim nodes at the expense of a valid PoW at tip.

Attribution
Cory Fields (MIT DCI) discovered this vulnerability and responsibly disclosed it in a detailed report containing a proof of concept for reproduction and a proposed mitigation.

Timeline
- 2024-11-02 Cory Fields privately reports the bug
- 2024-11-06 Pieter Wuille pushes a covert fix to already open PR #31112 which works around the issue by removing the early returns
- 2024-12-03 PR #31112 is merged
- 2025-04-12 Bitcoin Core version 29.0 is released with a fix
- 2026-04-19 The last vulnerable Bitcoin Core version (28.x) goes end of life
- 2026-05-05 Public disclosure.

dog - 20:37:05 up 231 days, 5:08, 4 users, load average: 0.00, 0.00, 0.00

[08/05/2026 09:54] Purê de feijão-preto servido a Lula e Trump intriga brasileiros, mas é tradicional na América Central – e tem um primo mineiro - G1

[08/05/2026 13:35] Davi Alcolumbre promulga PL da Dosimetria após prazo de Lula expirar - Correio Braziliense

[08/05/2026 12:20] Rogério Correia cobra Nikolas sobre ligação entre Ciro e Vorcaro - Poder360

[08/05/2026 13:46] Policial Civil é identificado como autor de tiro que matou passageira de carro de aplicativo durante briga de trânsito no Pechincha - O Globo

[08/05/2026 16:20] Mendonça autoriza transferência do ex-presidente do BRB Paulo Henrique Costa para a Papudinha - G1

[08/05/2026 12:11] Penduricalhos: STF manda registrar em contracheque único e veta manobras - CartaCapital

[08/05/2026 11:10] Neoenergia anuncia plano de R$ 50 bilhões em investimentos nos próximos 5 anos - Valor Econômico

[08/05/2026 06:04] Vorcaro quer devolver R$ 40 bilhões, mas só em 10 anos - Poder360

[08/05/2026 17:28] Aos gritos, Silas Malafaia ataca pastora que fez sermão pelas mulheres em SC: "Safadeza" - NSC Total

[08/05/2026 19:16] Brasil registra 8 casos de hantavírus em 2026. Saiba onde - Metrópoles

[CVE-2025-66913] [Modified: 30-01-2026] [Analyzed] [V3.1 S9.8:CRITICAL] JimuReport thru version 2.1.3 is vulnerable to remote code execution when processing user-controlled H2 JDBC URLs. The application passes the attacker-supplied JDBC URL directly to the H2 driver, allowing the use of certain directives to execute arbitrary Java code. A different vulnerability than CVE-2025-10770.

[CVE-2025-66916] [Modified: 30-01-2026] [Analyzed] [V3.1 S9.4:CRITICAL] The snailjob component in RuoYi-Vue-Plus versions 5.5.1 and earlier, interface /snail-job/workflow/check-node-expression can execute QLExpress expressions, but it does not filter user input, allowing attackers to use the File class to perform arbitrary file reading and writing.

[CVE-2025-68715] [Modified: 30-01-2026] [Analyzed] [V3.1 S9.1:CRITICAL] An issue was discovered in Panda Wireless PWRU0 devices with firmware 2.2.9 that exposes multiple HTTP endpoints (/goform/setWan, /goform/setLan, /goform/wirelessBasic) that do not enforce authentication. A remote unauthenticated attacker can modify WAN, LAN, and wireless settings directly, leading to privilege escalation and denial of service.

[CVE-2026-0747] [Modified: 22-01-2026] [Analyzed] [V3.1 S3.3:LOW] Exposure of sensitive information in the TeamViewer entry dashboard component in Devolutions Remote Desktop Manager 2025.3.24.0 through 2025.3.28.0 on Windows allows an external observer to view a password on screen via a defective masking feature, for example during physical observation or screen sharing.

[CVE-2025-15464] [Modified: 12-02-2026] [Analyzed] [V3.1 S7.5:HIGH] Exported Activity allows external applications to gain application context and directly launch Gmail with inbox access, bypassing security controls.

[CVE-2025-68716] [Modified: 02-02-2026] [Analyzed] [V3.1 S8.4:HIGH] KAYSUS KS-WR3600 routers with firmware 1.0.5.9.1 enable the SSH service enabled by default on the LAN interface. The root account is configured with no password, and administrators cannot disable SSH or enforce authentication via the CLI or web GUI. This allows any LAN-adjacent attacker to trivially gain root shell access and execute arbitrary commands with full privileges.

[CVE-2025-68717] [Modified: 02-02-2026] [Analyzed] [V3.1 S9.4:CRITICAL] KAYSUS KS-WR3600 routers with firmware 1.0.5.9.1 allow authentication bypass during session validation. If any user is logged in, endpoints such as /cgi-bin/system-tool accept unauthenticated requests with empty or invalid session values. This design flaw lets attackers piggyback on another user's active session to retrieve sensitive configuration data or execute privileged actions without authentication.

[CVE-2025-68718] [Modified: 02-02-2026] [Analyzed] [V3.1 S5.4:MEDIUM] KAYSUS KS-WR1200 routers with firmware 107 expose SSH and TELNET services on the LAN interface with hardcoded root credentials (root:12345678). The administrator cannot disable these services or change the hardcoded password. (Changing the management GUI password does not affect SSH/TELNET authentication.) Any LAN-adjacent attacker can trivially log in with root privileges.

[CVE-2025-68719] [Modified: 02-02-2026] [Analyzed] [V3.1 S8.8:HIGH] KAYSUS KS-WR3600 routers with firmware 1.0.5.9.1 mishandle configuration management. Once any user is logged in and maintains an active session, an attacker can directly query the backup endpoint and download a full configuration archive. This archive contains sensitive files such as /etc/shadow, enabling credential recovery and potential full compromise of the device.

[CVE-2026-0728] [Modified: 29-04-2026] [Analyzed] [V3.1 S4.7:MEDIUM] A security vulnerability has been detected in code-projects Intern Membership Management System 1.0. This issue affects some unknown processing of the file /intern/admin/delete_admin.php. Such manipulation of the argument admin_id leads to sql injection. The attack may be launched remotely. The exploit has been disclosed publicly and may be used.

[CVE-2026-22588] [Modified: 02-02-2026] [Analyzed] [V3.1 S6.5:MEDIUM] Spree is an open source e-commerce solution built with Ruby on Rails. Prior to versions 4.10.2, 5.0.7, 5.1.9, and 5.2.5, an Authenticated Insecure Direct Object Reference (IDOR) vulnerability was identified that allows an authenticated user to retrieve other users’ address information by modifying an existing order. By editing an order they legitimately own and manipulating address identifiers in the request, the backend server accepts and processes references to addresses belonging to other users, subsequently associating those addresses with the attacker’s order and returning them in the response. This issue has been patched in versions 4.10.2, 5.0.7, 5.1.9, and 5.2.5.

[CVE-2026-0729] [Modified: 29-04-2026] [Analyzed] [V3.1 S4.7:MEDIUM] A vulnerability was detected in code-projects Intern Membership Management System 1.0. Impacted is an unknown function of the file /intern/admin/add_activity.php. Performing a manipulation of the argument Title results in sql injection. Remote exploitation of the attack is possible. The exploit is now public and may be used.

[CVE-2026-0730] [Modified: 29-04-2026] [Analyzed] [V3.1 S2.4:LOW] A flaw has been found in PHPGurukul Staff Leave Management System 1.0. The affected element is the function ADD_STAFF/UPDATE_STAFF of the file /staffleave/slms/slms/adminviews.py of the component SVG File Handler. Executing a manipulation of the argument profile_pic can lead to cross site scripting. The attack can be executed remotely. The exploit has been published and may be used.

[CVE-2026-0731] [Modified: 29-01-2026] [Analyzed] [V3.1 S5.3:MEDIUM] A vulnerability has been found in TOTOLINK WA1200 5.9c.2914. The impacted element is an unknown function of the file cstecgi.cgi of the component HTTP Request Handler. The manipulation leads to null pointer dereference. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used.

[CVE-2026-0732] [Modified: 29-04-2026] [Analyzed] [V3.1 S6.3:MEDIUM] A vulnerability was found in D-Link DI-8200G 17.12.20A1. This affects an unknown function of the file /upgrade_filter.asp. The manipulation of the argument path results in command injection. The attack may be performed from remote. The exploit has been made public and could be used.

[CVE-2026-0733] [Modified: 29-04-2026] [Analyzed] [V3.1 S6.3:MEDIUM] A vulnerability was determined in PHPGurukul Online Course Registration System up to 3.1. This impacts an unknown function of the file /onlinecourse/admin/manage-students.php. This manipulation of the argument id/cid causes sql injection. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized.

[CVE-2026-22710] [Modified: 12-02-2026] [Analyzed] [V3.1 S5.4:MEDIUM] Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation Mediawiki - Wikibase Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - Wikibase Extension: 1.45, 1.44, 1.43, 1.39.

[CVE-2026-22712] [Modified: 12-02-2026] [Analyzed] [V3.1 S4.3:MEDIUM] Improper Encoding or Escaping of Output due to magic word replacement in ParserAfterTidy vulnerability in The Wikimedia Foundation Mediawiki - ApprovedRevs Extension allows Input Data Manipulation.This issue affects Mediawiki - ApprovedRevs Extension: 1.45, 1.44, 1.43, 1.39.

[CVE-2026-22713] [Modified: 12-02-2026] [Analyzed] [V3.1 S5.4:MEDIUM] Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation Mediawiki - GrowthExperiments Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - GrowthExperiments Extension: 1.45, 1.44, 1.43, 1.39.

[CVE-2025-66315] [Modified: 12-03-2026] [Analyzed] [V3.1 S4.3:MEDIUM] There is a configuration defect vulnerability in the version server of ZTE MF258K Pro products. Due to improper directory permission settings, an attacker can execute write permissions in a specific directory.